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RDX

RDX (abbreviation of "Research Department eXplosive" or Royal Demolition eXplosive) or hexogen, among other names, is an organic compound with the formula (CH2N2O2)3. It is white, odorless and tasteless, widely used as an explosive. Chemically, it is classified as a nitroamine alongside HMX, which is a more energetic explosive than TNT. It was used widely in World War II and remains common in military applications.

RDX is often used in mixtures with other explosives and plasticizers or phlegmatizers (desensitizers); it is the explosive agent in C-4 plastic explosive and a key ingredient in Semtex. It is stable in storage and is considered one of the most energetic and brisant of the military high explosives, with a relative effectiveness factor of 1.60.

Name
RDX is also less commonly known as cyclonite, hexogen (particularly in Russian, French and German-influenced languages), T4, and, chemically, as cyclotrimethylene trinitramine. In the 1930s, the Royal Arsenal, Woolwich, started investigating cyclonite to use against German U-boats that were being built with thicker hulls. The goal was to develop an explosive more energetic than TNT. For security reasons, Britain termed cyclonite "Research Department Explosive" (R.D.X.). The term RDX appeared in the United States in 1946. The first public reference in the United Kingdom to the name RDX, or R.D.X., to use the official title, appeared in 1948; its authors were the managing chemist, ROF Bridgwater, the chemical research and development department, Woolwich, and the director of Royal Ordnance Factories, Explosives; again, it was referred to as simply RDX.

Usage
RDX was widely used during World War II, often in explosive mixtures with TNT such as Torpex, Composition B, Cyclotols, and H6. RDX was used in one of the first plastic explosives. The bouncing bomb depth charges used in the "Dambusters Raid" each contained 6,600 lb of Torpex; The Tallboy and Grand Slam bombs designed by Barnes Wallis also used Torpex.

RDX is believed to have been used in many bomb plots, including terrorist plots.

RDX is the base for a number of common military explosives:
 * Composition A: Granular explosive consisting of RDX and plasticizing wax, such as composition A-3 (91% RDX coated with 9% wax) and composition A-5 (98.5 to 99.1% RDX coated with 0.95 to 1.54% stearic acid).
 * Composition B: Castable mixtures of 59.5% RDX and 39.4% TNT with 1% wax as desensitizer.
 * Composition C: The original composition C was used in World War II, but there have been subsequent variations including C-2, C-3, and C-4. C-4 consists of RDX (91%); a plasticizer, dioctyl sebacate (5.3%); and a binder, which is usually polyisobutylene (2.1%); and oil (1.6%).
 * Composition CH-6: 97.5% RDX, 1.5% calcium stearate, 0.5% polyisobutylene, and 0.5% graphite
 * DBX (Depth Bomb Explosive): Castable mixture consisting of 21% RDX, 21% ammonium nitrate, 40% TNT, and 18% powdered aluminium, developed during World War II, it was to be used in underwater munitions as a substitute for Torpex employing only half the amount of then-scarce RDX, as the supply of RDX became more adequate, however, the mixture was shelved
 * Cyclotol: Castable mixture of RDX (50–80%) with TNT (20–50%) designated by the amount of RDX/TNT, such as Cyclotol 70/30
 * HBX: Castable mixtures of RDX, TNT, powdered aluminium, and D-2 wax with calcium chloride
 * H-6: Castable mixture of RDX, TNT, powdered aluminum, and paraffin wax (used as a phlegmatizing agent)
 * PBX: RDX is also used as a major component of many polymer-bonded explosives (PBX); RDX-based PBXs typically consist of RDX and at least thirteen different polymer/co-polymer binders. Examples of RDX-based PBX formulations include, but are not limited to: PBX-9007, PBX-9010, PBX-9205, PBX-9407, PBX-9604, PBXN-106, PBXN-3, PBXN-6, PBXN-10, PBXN-201, PBX-0280, PBX Type I, PBXC-116, PBXAF-108, etc.
 * Semtex (trade name): Plastic demolition explosive containing RDX and PETN as major energetic components
 * Torpex: 42% RDX, 40% TNT, and 18% powdered aluminium; the mixture was designed during World War II and used mainly in underwater ordnance

Outside military applications, RDX is also used in controlled demolition to raze structures. The demolition of the Jamestown Bridge in the U.S. state of Rhode Island was one instance where RDX shaped charges were used to remove the span.

Synthesis
RDX is classified by chemists as a hexahydro-1,3,5-triazine derivative. In laboratory settings (industrial routes are described below separately) it is obtained by treating hexamine with white fuming nitric acid.
 * Synthesis hexogen.svg

This nitrolysis reaction also produces methylene dinitrate, ammonium nitrate, and water as by-products. The overall reaction is:
 * C6H12N4 + 10 HNO3 → C3H6N6O6 + 3 CH2(ONO2)2 + NH4NO3 + 3 H2O

The conventional cheap nitration agent, the so-called "mixed acid", can't be used for RDX synthesis because concentrated sulfuric acid conventionally used to stimulate the nitronium ion formation decomposes hexamine into formadehyde and ammonia.

Modern syntheses employ hexahydro triacyl triazine as it avoids formation of HMX.

History
RDX was used by both sides in World War II. The US produced about 15,000 LT per month during WWII and Germany about 7,000 LT per month. RDX had the major advantages of possessing greater explosive force than TNT, used in World War I, and requiring no additional raw materials for its manufacture.

Germany
RDX was reported in 1898 by Georg Friedrich Henning, who obtained a German patent (patent No. 104280) for its manufacture by nitrolysis of hexamine (hexamethylenetetramine) with concentrated nitric acid. In this patent, the medical properties of RDX were mentioned; however, three further German patents obtained by Henning in 1916 proposed its use in smokeless propellants. The German military started investigating its use in 1920, referring to it as hexogen. Research and development findings were not published further until Edmund von Herz, described as an Austrian and later a German citizen, obtained a British patent in 1921 and a United States patent in 1922. Both patent claims were initiated in Austria; and described the manufacture of RDX by nitrating hexamethylenetetramine. The British patent claims included the manufacture of RDX by nitration, its use with or without other explosives, its use as a bursting charge and as an initiator. The US patent claim was for the use of a hollow explosive device containing RDX and a detonator cap containing RDX. In the 1930s, Germany developed improved production methods.

During World War II, Germany used the code names W Salt, SH Salt, K-method, the E-method, and the KA-method. These names represented the identities of the developers of the various chemical routes to RDX. The W-method was developed by Wolfram in 1934 and gave RDX the code name "W-Salz". It used sulfamic acid, formaldehyde, and nitric acid. SH-Salz (SH salt) was from Schnurr, who developed a batch-process in 1937–38 based on nitrolysis of hexamine. The K-method, from Knöffler, involved addition of ammonium nitrate to the hexamine/nitric acid process. The E-method, developed by Ebele, proved to be identical to the Ross and Schiessler process described below. The KA-method, also developed by Knöffler, turned out to be identical to the Bachmann process described below.

The explosive shells fired by the MK 108 cannon and the warhead of the R4M rocket, both used in Luftwaffe fighter aircraft as offensive armament, both used hexogen as their explosive base.

UK
In the United Kingdom (UK), RDX was manufactured from 1933 by the research department in a pilot plant at the Royal Arsenal in Woolwich, London, a larger pilot plant being built at the RGPF Waltham Abbey just outside London in 1939. In 1939 a twin-unit industrial-scale plant was designed to be installed at a new 700 acre site, ROF Bridgwater, away from London and production of RDX started at Bridgwater on one unit in August 1941. The ROF Bridgwater plant brought in ammonia and methanol as raw materials: the methanol was converted to formaldehyde and some of the ammonia converted to nitric acid, which was concentrated for RDX production. The rest of the ammonia was reacted with formaldehyde to produce hexamine. The hexamine plant was supplied by Imperial Chemical Industries. It incorporated some features based on data obtained from the United States (US). RDX was produced by continually adding hexamine and concentrated nitric acid to a cooled mixture of hexamine and nitric acid in the nitrator. The RDX was purified and processed for its intended use; recovery and reuse of some methanol and nitric acid also was carried out. The hexamine-nitration and RDX purification plants were duplicated (i.e. twin-unit) to provide some insurance against loss of production due to fire, explosion, or air attack.

The United Kingdom and British Empire were fighting without allies against Nazi Germany until the middle of 1941 and had to be self-sufficient. At that time (1941), the UK had the capacity to produce 70 LT (160,000 lb) of RDX per week; both Canada, an allied country and self-governing dominion within the British Empire, and the US were looked upon to supply ammunition and explosives, including RDX. By 1942 the Royal Air Force's annual requirement was forecast to be 52000 LT of RDX, much of which came from North America (Canada and the US).

Canada
A different method of production to the Woolwich process was found and used in Canada, possibly at the McGill University department of chemistry. This was based on reacting paraformaldehyde and ammonium nitrate in acetic anhydride. A UK patent application was made by Robert Walter Schiessler (Pennsylvania State University) and James Hamilton Ross (McGill, Canada) in May 1942; the UK patent was issued in December 1947. Gilman states that the same method of production had been independently discovered by Ebele in Germany prior to Schiessler and Ross, but that this was not known by the Allies. Urbański provides details of five methods of production, and he refers to this method as the (German) E-method.

UK, US, and Canadian production and development
At the beginning of the 1940s, the major US explosive manufacturers, E. I. du Pont de Nemours & Company and Hercules, had several decades of experience of manufacturing trinitrotoluene (TNT) and had no wish to experiment with new explosives. US Army Ordnance held the same viewpoint and wanted to continue using TNT. RDX had been tested by Picatinny Arsenal in 1929, and it was regarded as too expensive and too sensitive. The Navy proposed to continue using ammonium picrate. In contrast, the National Defense Research Committee (NDRC), who had visited The Royal Arsenal, Woolwich, thought new explosives were necessary. James B. Conant, chairman of Division B, wished to involve academic research into this area. Conant therefore set up an experimental explosives research laboratory at the Bureau of Mines, Bruceton, Pennsylvania, using Office of Scientific Research and Development (OSRD) funding.

Woolwich method
In 1941, the UK's Tizard Mission visited the US Army and Navy departments and part of the information handed over included details of the "Woolwich" method of manufacture of RDX and its stabilisation by mixing it with beeswax. The UK was asking that the US and Canada, combined, supply 220 ST (440,000 lb) of RDX per day. A decision was taken by William H. P. Blandy, chief of the Bureau of Ordnance, to adopt RDX for use in mines and torpedoes. Given the immediate need for RDX, the US Army Ordnance, at Blandy's request, built a plant that copied the equipment and process used at Woolwich. The result was the Wabash River Ordnance Works run by E. I. du Pont de Nemours & Company. At that time, this works had the largest nitric acid plant in the world. The Woolwich process was expensive: it needed 11 lb of strong nitric acid for every pound of RDX.

By early 1941, the NDRC was researching new processes. The Woolwich or direct nitration process has at least two serious disadvantages: (1) it used large amounts of nitric acid and (2) at least one-half of the formaldehyde is lost. One mole of hexamethylenetetramine could produce at most one mole of RDX. At least three laboratories with no previous explosive experience were instructed to develop better production methods for RDX; they were based at Cornell, Michigan, and Pennsylvania State universities. Werner Emmanuel Bachmann, from Michigan, successfully developed the "combination process" by combining the Ross and Schiessler process used in Canada (aka the German E-method) with direct nitration. The combination process required large quantities of acetic anhydride instead of nitric acid in the old British "Woolwich process". Ideally, the combination process could produce two moles of RDX from each mole of hexamethylenetetramine.

The vast production of RDX could not continue to rely on the use of natural beeswax to desensitize the RDX. A substitute stabilizer based on petroleum was developed at the Bruceton Explosives Research Laboratory.

Bachmann process
The National Defence Research Committee  (NDRC) instructed three companies to develop pilot plants. They were the Western Cartridge Company, E. I. du Pont de Nemours & Company, and Tennessee Eastman Company, part of Eastman Kodak. At the Eastman Chemical Company (TEC), a leading manufacturer of acetic anhydride, Werner Emmanuel Bachmann developed a continuous-flow process for RDX utilizing an ammonium nitrate/nitric acid mixture as a nitrating agent in a medium of acetic acid and acetic anhydride. RDX was crucial to the war effort and the current batch-production process was too slow. In February 1942, TEC began producing small amounts of RDX at its Wexler Bend pilot plant, which led to the US government authorizing TEC to design and build Holston Ordnance Works (H.O.W.) in June 1942. By April 1943, RDX was being manufactured there. At the end of 1944, the Holston plant and the Wabash River Ordnance Works, which used the Woolwich process, were producing 25000 ST (50 million pounds) of Composition B per month.

The Bachmann process yields both RDX and HMX, with the major product determined by the specific reaction conditions.

Military compositions
The United Kingdom's intention in World War II was to use "desensitised" RDX. In the original Woolwich process, RDX was phlegmatized with beeswax, but later paraffin wax was used, based on the work carried out at Bruceton. In the event the UK was unable to obtain sufficient RDX to meet its needs, some of the shortfall was met by substituting amatol, a mixture of ammonium nitrate and TNT.

Karl Dönitz was reputed to have claimed that "an aircraft can no more kill a U-boat than a crow can kill a mole". Nonetheless, by May 1942 Wellington bombers began to deploy depth charges containing Torpex, a mixture of RDX, TNT, and aluminium, which had up to 50 percent more destructive power than TNT-filled depth charges. Considerable quantities of the RDX–TNT mixture were produced at the Holston Ordnance Works, with Tennessee Eastman developing an automated mixing and cooling process based around the use of stainless steel conveyor belts.

Terrorism
A Semtex bomb was used in the Pan Am Flight 103 (known also as the Lockerbie) bombing in 1988. A belt laden with 700 g of RDX explosives tucked under the dress of the assassin was used in the assassination of former Indian prime minister Rajiv Gandhi in 1991. The 1993 Bombay bombings used RDX placed into several vehicles as bombs. RDX was the main component used for the 2006 Mumbai train bombings and the Jaipur bombings in 2008. It also is believed to be the explosive used in the 2010 Moscow Metro bombings.

Traces of RDX were found on pieces of wreckage from 1999 Russian apartment bombings and 2004 Russian aircraft bombings. FSB reports on the bombs used in the 1999 apartment bombings indicated that while RDX was not a part of the main charge, each bomb contained plastic explosive used as a booster charge.

Ahmed Ressam, the al-Qaeda Millennium Bomber, used a small quantity of RDX as one of the components in the bomb that he prepared to detonate in Los Angeles International Airport on New Year's Eve 1999–2000; the bomb could have produced a blast forty times greater than that of a devastating car bomb.

In July 2012, the Kenyan government arrested two Iranian nationals and charged them with illegal possession of 15 kg of RDX. According to the Kenyan Police, the Iranians planned to use the RDX for "attacks on Israeli, US, UK and Saudi Arabian targets".

RDX was used in the assassination of Lebanese Prime Minister Rafic Hariri on February 14, 2005.

In the 2019 Pulwama attack in India, 250 kg of high-grade RDX was used by Jaish-e-Mohammed. The attack resulted in the deaths of 44 Central Reserve Police Force (CRPF) personnel as well as the attacker.

Two letter bombs sent to journalists in Ecuador were disguised as USB flash drives which contained RDX that would detonate when plugged in.

Stability
RDX has a high nitrogen content and a high oxygen to carbon ratio, (O:C ratio), both of which indicate its explosive potential for formation of N2 and CO2.

RDX undergoes a deflagration to detonation transition (DDT) in confinement and certain circumstances.

The velocity of detonation of RDX at a density of 1.80 g/cm3 is 8750 m/s.

It starts to decompose at approximately 170 °C and melts at 204 °C. At room temperature, it is very stable. It burns rather than explodes. It detonates only with a detonator, being unaffected even by small arms fire. This property makes it a useful military explosive. It is less sensitive than pentaerythritol tetranitrate (PETN). Under normal conditions, RDX has a Figure of Insensitivity of exactly 80 (RDX defines the reference point).

RDX sublimes in vacuum, which restricts or prevents its use in some applications.

RDX, when exploded in air, has about 1.5 times the explosive energy of TNT per unit weight and about 2.0 times per unit volume.

RDX is insoluble in water, with solubility 0.05975 g/L at temperature of 25 °C.

Toxicity
The substance's toxicity has been studied for many years. RDX has caused convulsions (seizures) in military field personnel ingesting it, and in munition workers inhaling its dust during manufacture. At least one fatality was attributed to RDX toxicity in a European munitions manufacturing plant.

During the Vietnam War, at least 40 American soldiers were hospitalized with composition C-4 (which is 91% RDX) intoxication from December 1968 to December 1969. C-4 was frequently used by soldiers as a fuel to heat food, and the food was generally mixed by the same knife that was used to cut C-4 into small pieces prior to burning. Soldiers were exposed to C-4 either due to inhaling the fumes, or due to ingestion, made possible by many small particles adhering to the knife having been deposited into the cooked food. The symptom complex involved nausea, vomiting, generalized seizures, and prolonged postictal confusion and amnesia; which indicated toxic encephalopathy.

Oral toxicity of RDX depends on its physical form; in rats, the LD50 was found to be 100 mg/kg for finely powdered RDX, and 300 mg/kg for coarse, granular RDX. A case has been reported of a human child hospitalized in status epilepticus following the ingestion of 84.82 mg/kg dose of RDX (or 1.23 g for the patient's body weight of 14.5 kg) in the "plastic explosive" form.

The substance has low to moderate toxicity with a possible human carcinogen classification. Further research is ongoing, however, and this classification may be revised by the United States Environmental Protection Agency (EPA). Remediating RDX-contaminated water supplies has proven to be successful. It is known to be a kidney toxin in humans and highly toxic to earthworms and plants, thus army testing ranges where RDX was used heavily may need to undergo environmental remediation. Concerns have been raised by research published in late 2017 indicating that the issue has not been addressed correctly by U.S. officials.

Civilian use
RDX has been used as a rodenticide because of its toxicity.

Biodegradation
RDX is degraded by the organisms in sewage sludge as well as the fungus Phanaerocheate chrysosporium. Both wild and transgenic plants can phytoremediate explosives from soil and water.

Alternatives
FOX-7 is considered to be approximately a 1-to-1 replacement for RDX in almost all applications.

license: Creative Commons - Attribution Share-Alike - https://creativecommons.org/licenses/by-sa/4.0/

title: RDX


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Celebes (disambiguation)

Celebes is the western name of Sulawesi, an island in Indonesia.

Celebes may also refer to:
 * Celebes Sea, western Pacific Ocean
 * Celebes TV, a local news television station in South Sulawesi, Indonesia
 * The Elephant Celebes, a 1921 Surrealist work by Max Ernst
 * HMS Celebes (1806), originally the Batavian Republic frigate Pallas
 * Celebes papeda, Citrus celebica, a tree species native to Sulawesi

title: Celebes (disambiguation)


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Christianity and Judaism

Christianity began as a movement within Second Temple Judaism, but the two religions gradually diverged over the first few centuries of the Christian era. Today, differences of opinion vary between denominations in both religions, but the most important distinction is Christian acceptance and Jewish non-acceptance of Jesus as the Messiah prophesied in the Hebrew Bible and Jewish tradition. Early Christianity distinguished itself by determining that observance of halakha (Jewish law) was not necessary for non-Jewish converts to Christianity (see Pauline Christianity). Another major difference is the two religions' conceptions of God. Depending on the denomination followed, the Christian God is either believed to consist of three persons of one essence (Father, Son and Holy Spirit), with the doctrine of the incarnation of the Son in Jesus being of special importance, or like Judaism, believes in and emphasizes the Oneness of God. Judaism, however, rejects the Christian concept of God in human form. While Christianity recognizes the Hebrew Bible (called the Old Testament by Christians) as part of its scriptural canon, Judaism does not recognize the Christian New Testament.

The relative importance of belief and practice constitute an important area of difference. Most forms of Protestant Christianity emphasize correct belief (or orthodoxy), focusing on the New Covenant as mediated through Jesus Christ, as recorded in the New Testament. Judaism places emphasis on correct conduct (or orthopraxy),  focusing on the Mosaic covenant, as recorded in the Torah and Talmud. Mainstream Roman Catholicism occupies a middle position, stating that both faith and works are factors in a person's salvation. Some schools of thought within Catholicism, such as Franciscanism and liberation theology, explicitly favor orthopraxy over orthodoxy. Praxis is of central importance to Eastern Christianity as well, with Saint Maximus the Confessor going as far as to say that "theology without action is the theology of demons." Christian conceptions of right practice vary (e.g., Catholic social teaching and its preferential option for the poor; the Eastern Orthodox Church's practices of fasting, hesychasm, and asceticism; the Protestant work ethic of Calvinists and others), but differ from Judaism in that they are not based on following halakha or any other interpretation of the Mosaic covenant. While more liberal Jewish denominations may not require observance of halakha, Jewish life remains centred on individual and collective participation in an eternal dialogue with God through tradition, rituals, prayers and ethical actions.

Jewish self-identification
Judaism's purpose is to carry out what it holds to be the covenant between God and the Jewish people. The Torah (lit. 'teaching'), both written and oral, tells the story of this covenant, and provides Jews with the terms of the covenant. The Oral Torah is the primary guide for Jews to abide by these terms, as expressed in tractate Gittin 60b ("the Holy One, Blessed be He, did not make His covenant with Israel except by virtue of the Oral Law") to help them learn how to live a holy life, and to bring holiness, peace and love into the world and into every part of life, so that life may be elevated to a high level of kedushah, originally through study and practice of the Torah, and since the destruction of the Second Temple, through prayer as expressed in tractate Sotah 49a "Since the destruction of the Temple, every day is more cursed than the preceding one; and the existence of the world is assured only by the kedusha...and the words spoken after the study of Torah."

Since the adoption of the Amidah, the acknowledgement of God through the declaration from Isaiah 6:3 "Kadosh [holy], kadosh, kadosh, is HaShem, Master of Legions; the whole world is filled with His glory". as a replacement for the study of Torah, which is a daily obligation for Jews, and sanctifies God in itself. This continuous maintenance of relationship between the individual Jew and God through either study, or prayer repeated three times daily, is the confirmation of the original covenant. This allows the Jewish people as a community to strive and fulfill the prophecy "I, the Lord, have called you in righteousness, and will hold your hand and keep you. And I will establish you as a covenant of the people, for a light unto the nations." (i.e., a role model) over the course of history, and a part of the divine intent of bringing about an age of peace and sanctity where ideally a faithful life and good deeds should be ends in themselves, not means (see also Jewish principles of faith).

According to Christian theologian Alister McGrath, the Jewish Christians affirmed every aspect of then contemporary Second Temple Judaism with the addition of the belief that Jesus was the messiah, with Isaiah 49:6, "an explicit parallel to 42:6" quoted by Paul the Apostle in Acts 13:47 and reinterpreted by Justin Martyr. According to Christian writers, most notably Paul, the Bible teaches that people are, in their current state, sinful, and the New Testament reveals that Jesus is both the Son of man and the Son of God, united in the hypostatic union, God the Son, God made incarnate; that Jesus' death by crucifixion was a sacrifice to atone for all of humanity's sins, and that acceptance of Jesus as Savior and Lord saves one from Divine Judgment, giving Eternal life. Jesus is the mediator of the New Covenant. His famous Sermon on the Mount is considered by some Christian scholars to be the proclamation of the New Covenant ethics, in contrast to the Mosaic Covenant of Moses from Mount Sinai.

But some scholars, like Margaret Barker, propose that early Christianity has roots in First Temple Israelite religion, which is dubbed as the "Temple Theology". Baker's works have been criticized for engaging in parallelomania and failing to engage in the broader scholarly literature but it has gained some religious and academic support.

Sacred texts
The Hebrew Bible is composed of three parts; the Torah (Instruction, the Septuagint translated the Hebrew to nomos or Law), the Nevi'im (Prophets) and the Ketuvim (Writings). Collectively, these are known as the Tanakh. According to Rabbinic Judaism the Torah was revealed by God to Moses; within it, Jews find 613 Mitzvot (commandments).

Rabbinic tradition asserts that God revealed two Torahs to Moses, one that was written down, and one that was transmitted orally. Whereas the written Torah has a fixed form, the Oral Torah is a living tradition that includes not only specific supplements to the written Torah (for instance, what is the proper manner of shechita and what is meant by "Frontlets" in the Shema), but also procedures for understanding and talking about the written Torah (thus, the Oral Torah revealed at Sinai includes debates among rabbis who lived long after Moses). The Oral Law elaborations of narratives in the Bible and stories about the rabbis are referred to as aggadah. It also includes elaboration of the 613 commandments in the form of laws referred to as halakha. Elements of the Oral Torah were committed to writing and edited by Judah HaNasi in the Mishnah in 200 CE; much more of the Oral Torah were committed to writing in the Babylonian and Jerusalem Talmuds, which were edited around 600 CE and 450 CE, respectively. The Talmuds are notable for the way they combine law and lore, for their explication of the midrashic method of interpreting texts, and for their accounts of debates among rabbis, which preserve divergent and conflicting interpretations of the Bible and legal rulings.

Since the transcription of the Talmud, notable rabbis have compiled law codes that are generally held in high regard: the Mishneh Torah, the Tur, and the Shulchan Aruch. The latter, which was based on earlier codes and supplemented by the commentary by Moshe Isserles that notes other practices and customs practiced by Jews in different communities, especially among Ashkenazim, is generally held to be authoritative by Orthodox Jews. The Zohar, which was written in the 13th century, is generally held as the most important esoteric treatise of the Jews.

All contemporary Jewish movements consider the Tanakh, and the Oral Torah in the form of the Mishnah and Talmuds as sacred, although movements are divided as to claims concerning their divine revelation, and also their authority. For Jews, the Torah—written and oral—is the primary guide to the relationship between God and man, a living document that has unfolded and will continue to unfold whole new insights over the generations and millennia. A saying that captures this goes, "Turn it [the Torah's words] over and over again, for everything is in it."

Christians accept the Written Torah and other books of the Hebrew Bible (alternatively called Old Testament) as Scripture, although they generally give readings from the Koine Greek Septuagint translation instead of the Biblical Hebrew/Biblical Aramaic Masoretic Text. Two notable examples are:
 * Isaiah 7:14 – "virgin" instead of "young woman"
 * Psalm 22:16 – "they have pierced my hands and feet" instead of "like a lion, (they are at) my hands and feet"

Instead of the traditional Jewish order and names for the books, Christians organize and name the books closer to that found in the Septuagint. Some Christian denominations (such as Anglican, Roman Catholic, and Eastern Orthodox), include a number of books that are not in the Hebrew Bible (the biblical apocrypha or deuterocanonical books or Anagignoskomena, see Development of the Old Testament canon) in their biblical canon that are not in today's Jewish canon, although they were included in the Septuagint. Christians reject the Jewish Oral Torah, which was still in oral, and therefore unwritten, form in the time of Jesus.

Covenant theology
Christians believe that God has established a New Covenant with people through Jesus, as recorded in the Gospels, Acts of the Apostles, Epistles, and other books collectively called the New Testament (the word testament attributed to Tertullian is commonly interchanged with the word covenant). For some Christians, such as Roman Catholics and Orthodox Christians, this New Covenant includes authoritative sacred traditions and canon law. Others, especially Protestants, reject the authority of such traditions and instead hold to the principle of sola scriptura, which accepts only the Bible itself as the final rule of faith and practice. Anglicans do not believe in sola scriptura. For them scripture is the longest leg of a 3-legged stool: scripture, tradition and reason. Scripture cannot stand on its own since it must be interpreted in the light of the Church's patristic teaching and ecumenical creeds. Additionally, some denominations include the "oral teachings of Jesus to the Apostles", which they believe have been handed down to this day by apostolic succession.

Christians refer to the biblical books about Jesus as the New Testament, and to the canon of Hebrew books as the Old Testament. Judaism does not accept the retronymic labeling of its sacred texts as the "Old Testament", and some Jews refer to the New Testament as the Christian Testament or Christian Bible. Judaism rejects all claims that the Christian New Covenant supersedes, abrogates, fulfills, or is the unfolding or consummation of the covenant expressed in the Written and Oral Torahs. Therefore, just as Christianity does not accept that Mosaic law has any authority over Christians, Judaism does not accept that the New Testament has any religious authority over Jews.

Law
Many Jews view Christians as having quite an ambivalent view of the Torah, or Mosaic law: on one hand Christians speak of it as God's absolute word, but on the other, they apply its commandments with a certain selectivity. Some Jews contend that Christians cite commandments from the Old Testament to support one point of view but then ignore other commandments of a similar class and of equal weight. Examples of this are certain commandments that God states explicitly be a "lasting covenant." Some translate the Hebrew as a "perpetual covenant."

Christians explain that such selectivity is based on rulings made by early Jewish Christians in the Book of Acts, at the Council of Jerusalem, that, while believing gentiles did not need to fully convert to Judaism, they should follow some aspects of Torah like avoiding idolatry and fornication and blood. This view is also reflected by modern Judaism, in that Righteous gentiles need not convert to Judaism and need to observe only the Noahide Laws, which also contain prohibitions against idolatry and fornication and blood.

Some Christians agree that Jews who accept Jesus should still observe all of Torah, see for example Dual-covenant theology, based on warnings by Jesus to Jews not to use him as an excuse to disregard it, and they support efforts of those such as Messianic Jews (Messianic Judaism is considered by most Christians and Jews to be a form of Christianity)  to do that, but some Protestant forms of Christianity oppose all observance to the Mosaic law, even by Jews, which Luther criticised as Antinomianism.
 * Orthodox
 * Conservative:
 * Reform:
 * Reconstructionist/Renewal:
 * Reconstructionist/Renewal:
 * Stetzer, Ed (13 October 2005). "A Missional Church", The Christian Index. "Missional churches are indigenous. Churches that are indigenous have taken root in the soil and reflect, to some degree, the culture of their community... The messianic congregation (is)... in this case indigenous to Jewish culture."
 * Stetzer, Ed (13 October 2005). "A Missional Church", The Christian Index. "Missional churches are indigenous. Churches that are indigenous have taken root in the soil and reflect, to some degree, the culture of their community... The messianic congregation (is)... in this case indigenous to Jewish culture."
 * Stetzer, Ed (13 October 2005). "A Missional Church", The Christian Index. "Missional churches are indigenous. Churches that are indigenous have taken root in the soil and reflect, to some degree, the culture of their community... The messianic congregation (is)... in this case indigenous to Jewish culture."
 * Stetzer, Ed (13 October 2005). "A Missional Church", The Christian Index. "Missional churches are indigenous. Churches that are indigenous have taken root in the soil and reflect, to some degree, the culture of their community... The messianic congregation (is)... in this case indigenous to Jewish culture."

A minority view in Christianity, known as Christian Torah-submission, holds that the Mosaic law as it is written is binding on all followers of God under the New Covenant, even for gentiles, because it views God's commands as "everlasting" and "good."

Concepts of God
Traditionally, both Judaism and Christianity believe in the God of Abraham, Isaac and Jacob, for Jews the God of the Tanakh, for Christians the God of the Old Testament, the creator of the universe. Judaism and major sects of Christianity reject the view that God is entirely immanent (although some see this as the concept of the Holy Ghost) and within the world as a physical presence (although Christians believe in the incarnation of God). Both religions reject the view that God is entirely transcendent, and thus separate from the world, as the pre-Christian Greek Unknown God. Both religions reject atheism on one hand and polytheism on the other.

Both religions agree that God shares both transcendent and immanent qualities. How these religions resolve this issue is where the religions differ. Christianity posits that God exists as a Trinity; in this view God exists as three distinct persons who share a single divine essence, or substance. In those three there is one, and in that one there are three; the one God is indivisible, while the three persons are distinct and unconfused, God the Father, God the Son, and God the Holy Spirit. It teaches that God became especially immanent in physical form through the Incarnation of God the Son who was born as Jesus of Nazareth, who is believed to be at once fully God and fully human. There are denominations self-describing as Christian who question one or more of these doctrines, however, see Nontrinitarianism. By contrast, Judaism sees God as a single entity, and views trinitarianism as both incomprehensible and a violation of the Bible's teaching that God is one. It rejects the notion that Jesus or any other object or living being could be 'God', that God could have a literal 'son' in physical form or is divisible in any way, or that God could be made to be joined to the material world in such fashion. Although Judaism provides Jews with a word to label God's transcendence (Ein Sof, without end) and immanence (Shekhinah, in-dwelling), these are merely human words to describe two ways of experiencing God; God is one and indivisible.

Shituf
A minority Jewish view maintains that while Christian worship is polytheistic (due to the multiplicity of the Trinity), it is permissible for them to swear in God's name, since they are referring to the one God. This theology is referred to in Hebrew as Shituf (literally "partnership" or "association"). Although worship of a trinity is considered to be not different from any other form of idolatry for Jews, it may be an acceptable belief for non-Jews (according to the ruling of some Rabbinic authorities).

Faith versus good deeds
Judaism teaches that the purpose of the Torah is to teach us how to act correctly. God's existence is a given in Judaism, and not something that most authorities see as a matter of required belief. Although some authorities see the Torah as commanding Jews to believe in God, Jews see belief in God as a necessary, but not sufficient, condition for a Jewish life. The quintessential verbal expression of Judaism is the Shema Yisrael, the statement that the God of the Bible is their God, and that this God is unique and one. The quintessential physical expression of Judaism is behaving in accordance with the 613 Mitzvot (the commandments specified in the Torah), and thus live one's life in God's ways.

Thus fundamentally in Judaism, one is enjoined to bring holiness into life (with the guidance of God's laws), rather than removing oneself from life to be holy.

Much of Christianity also teaches that God wants people to perform good works, but all branches hold that good works alone will not lead to salvation, which is called Legalism, the exception being dual-covenant theology. Some Christian denominations hold that salvation depends upon transformational faith in Jesus, which expresses itself in good works as a testament (or witness) to ones faith for others to see (primarily Eastern Orthodox Christianity and Roman Catholicism), while others (including most Protestants) hold that faith alone is necessary for salvation. Some argue that the difference is not as great as it seems, because it really hinges on the definition of "faith" used. The first group generally uses the term "faith" to mean "intellectual and heartfelt assent and submission". Such a faith will not be salvific until a person has allowed it to effect a life transforming conversion (turning towards God) in their being (see Ontotheology). The Christians that hold to "salvation by faith alone" (also called by its Latin name "sola fide") define faith as being implicitly ontological—mere intellectual assent is not termed "faith" by these groups. Faith, then, is life-transforming by definition.

Sin
In both religions, offenses against the will of God are called sin. These sins can be thoughts, words, or deeds.

Catholicism categorizes sins into various groups. A wounding of the relationship with God is often called venial sin; a complete rupture of the relationship with God is often called mortal sin. Without salvation from sin (see below), a person's separation from God is permanent, causing such a person to enter Hell in the afterlife. Both the Catholic Church and the Orthodox Church define sin more or less as a "macula", a spiritual stain or uncleanliness that constitutes damage to man's image and likeness of God.

Hebrew has several words for sin, each with its own specific meaning. The word pesha, or "trespass", means a sin done out of rebelliousness. The word aveira means "transgression". And the word avone, or "iniquity", means a sin done out of moral failing. The word most commonly translated simply as "sin", het, literally means "to go astray". Just as Jewish law, halakha provides the proper "way" (or path) to live, sin involves straying from that path. Judaism teaches that humans are born with free will, and morally neutral, with both a yetzer hatov, (literally, "the good inclination", in some views, a tendency towards goodness, in others, a tendency towards having a productive life and a tendency to be concerned with others) and a yetzer hara, (literally "the evil inclination", in some views, a tendency towards evil, and in others, a tendency towards base or animal behavior and a tendency to be selfish). In Judaism all human beings are believed to have free will and can choose the path in life that they will take. It does not teach that choosing good is impossible—only at times more difficult. There is almost always a "way back" if a person wills it. (Although texts mention certain categories for whom the way back will be exceedingly hard, such as the slanderer, the habitual gossip, and the malicious person)

The rabbis recognize a positive value to the yetzer hara: one tradition identifies it with the observation on the last day of creation that God's accomplishment was "very good" (God's work on the preceding days was just described as "good") and explain that without the yetzer ha'ra there would be no marriage, children, commerce or other fruits of human labor; the implication is that yetzer ha'tov and yetzer ha'ra are best understood not as moral categories of good and evil but as selfless versus selfish orientations, either of which used rightly can serve God's will.

In contrast to the Jewish view of being morally balanced, Original Sin refers to the idea that the sin of Adam and Eve's disobedience (sin "at the origin") has passed on a spiritual heritage, so to speak. Christians teach that human beings inherit a corrupted or damaged human nature in which the tendency to do bad is greater than it would have been otherwise, so much so that human nature would not be capable now of participating in the afterlife with God. This is not a matter of being "guilty" of anything; each person is only personally guilty of their own actual sins. However, this understanding of original sin is what lies behind the Christian emphasis on the need for spiritual salvation from a spiritual Saviour, who can forgive and set aside sin even though humans are not inherently pure and worthy of such salvation. Paul the Apostle in Romans and I Corinthians placed special emphasis on this doctrine, and stressed that belief in Jesus would allow Christians to overcome death and attain salvation in the hereafter.

Roman Catholics, Eastern Orthodox Christians, and some Protestants teach the Sacrament of Baptism is the means by which each person's damaged human nature is healed and sanctifying grace (capacity to enjoy and participate in the spiritual life of God) is restored. This is referred to as "being born of water and the Spirit", following the terminology in the Gospel of St. John. Most Protestants believe this salvific grace comes about at the moment of personal decision to follow Jesus, and that baptism is a symbol of the grace already received.

Love
The Hebrew word for "love", ahavah (אהבה), is used to describe intimate or romantic feelings or relationships, such as the love between parent and child in Genesis 22:2; 25: 28; 37:3; the love between close friends in I Samuel 18:2, 20:17; or the love between a young man and young woman in Song of Songs. Christians will often use the Greek of the Septuagint to make distinctions between the types of love: philia for brotherly, eros for romantic and agape for self-sacrificing love.

Like many Jewish scholars and theologians, literary critic Harold Bloom understands Judaism as fundamentally a religion of love. But he argues that one can understand the Hebrew conception of love only by looking at one of the core commandments of Judaism, Leviticus 19:18, "Love your neighbor as yourself", also called the second Great Commandment. Talmudic sages Hillel and Rabbi Akiva commented that this is a major element of the Jewish religion. Also, this commandment is arguably at the center of the Jewish faith. As the third book of the Torah, Leviticus is literally the central book. Historically, Jews have considered it of central importance: traditionally, children began their study of the Torah with Leviticus, and the midrashic literature on Leviticus is among the longest and most detailed of midrashic literature. Bernard Jacob Bamberger considers Leviticus 19, beginning with God's commandment in verse 3—"You shall be holy, for I the Lord your God, am holy"—to be "the climactic chapter of the book, the one most often read and quoted" (1981:889). Leviticus 19:18 is itself the climax of this chapter.

Abortion
The only statements in the Tanakh about the status of a fetus state that killing an unborn infant does not have the same status as killing a born human being, and mandates a much lesser penalty. (Although this interpretation is disputed, the passage could refer to an injury to a woman that causes a premature, live birth).

The Talmud states that the fetus is not yet a full human being until it has been born (either the head or the body is mostly outside of the woman), therefore killing a fetus is not murder, and abortion—in restricted circumstances—has always been legal under Jewish law. Rashi, the great 12th century commentator on the Bible and Talmud, states clearly of the fetus lav nefesh hu: "it is not a person". The Talmud contains the expression ubar yerech imo—the fetus is as the thigh of its mother,' i.e., the fetus is deemed to be part and parcel of the pregnant woman's body." The Babylonian Talmud Yevamot 69b states that: "the embryo is considered to be mere water until the fortieth day." Afterwards, it is considered subhuman until it is born. Christians who agree with these views may refer to this idea as abortion before the quickening of the fetus.

Judaism unilaterally supports, in fact mandates, abortion if doctors believe that it is necessary to save the life of the woman. Many rabbinic authorities allow abortions on the grounds of gross genetic imperfections of the fetus. They also allow abortion if the woman were suicidal because of such defects. However, Judaism holds that abortion is impermissible for family planning or convenience reasons. Each case must be decided individually, however, and the decision should lie with the pregnant woman, the man who impregnated her, and their Rabbi.

War, violence and pacifism
Jews and Christians accept as valid and binding many of the same moral principles taught in the Torah. There is a great deal of overlap between the ethical systems of these two faiths. Nonetheless, there are some highly significant doctrinal differences.

Judaism has many teachings about peace and compromise, and its teachings make physical violence the last possible option. Nonetheless, the Talmud teaches that "If someone comes with the intention to murder you, then one is obligated to kill in self-defense [rather than be killed]". The clear implication is that to bare one's throat would be tantamount to suicide (which Jewish law forbids) and it would also be considered helping a murderer kill someone and thus would "place an obstacle in front of a blind man" (i.e., makes it easier for another person to falter in their ways). The tension between the laws dealing with peace, and the obligation to self-defense, has led to a set of Jewish teachings that have been described as tactical-pacifism. This is the avoidance of force and violence whenever possible, but the use of force when necessary to save the lives of one's self and one's people.

Although killing oneself is forbidden under normal Jewish law as being a denial of God's goodness in the world, under extreme circumstances when there has seemed no choice but to either be killed or forced to betray their religion, Jews have committed suicide or mass suicide (see Masada, First French persecution of the Jews, and York Castle for examples). As a grim reminder of those times, there is even a prayer in the Jewish liturgy for "when the knife is at the throat", for those dying "to sanctify God's Name". These acts have received mixed responses by Jewish authorities. Where some Jews regard them as examples of heroic martyrdom, but others saying that while Jews should always be willing to face martyrdom if necessary, it was wrong for them to take their own lives.

Because Judaism focuses on this life, many questions to do with survival and conflict (such as the classic moral dilemma of two people in a desert with only enough water for one to survive) were analysed in great depth by the rabbis within the Talmud, in the attempt to understand the principles a godly person should draw upon in such a circumstance.

The Sermon on the Mount records that Jesus taught that if someone comes to harm you, then one must turn the other cheek. This has led four Protestant Christian denominations to develop a theology of pacifism, the avoidance of force and violence at all times. They are known historically as the peace churches, and have incorporated Christ's teachings on nonviolence into their theology so as to apply it to participation in the use of violent force; those denominations are the Quakers, Mennonites, Amish, and the Church of the Brethren. Many other churches have people who hold to the doctrine without making it a part of their doctrines, or who apply it to individuals but not to governments, see also Evangelical counsels. The vast majority of Christian nations and groups have not adopted this theology, nor have they followed it in practice. See also But to bring a sword.

Capital punishment
Although the Hebrew Bible has many references to capital punishment, the Jewish sages used their authority to make it nearly impossible for a Jewish court to impose a death sentence. Even when such a sentence might have been imposed, the Cities of Refuge and other sanctuaries, were at hand for those unintentionally guilty of capital offences. It was said in the Talmud about the death penalty in Judaism, that if a court killed more than one person in seventy years, it was a barbarous (or "bloody") court and should be condemned as such.

Christianity usually reserved the death penalty for heresy, the denial of the orthodox view of God's view, and witchcraft or similar non-Christian practices. For example, in Spain, unrepentant Jews were exiled, and it was only those crypto-Jews who had accepted baptism under pressure but retained Jewish customs in private, who were punished in this way. It is presently acknowledged by most of Christianity that these uses of capital punishment were deeply immoral.

Taboo food and drink
Orthodox Jews, unlike most Christians, still practice a restrictive diet that has many rules. Most Christians believe that the kosher food laws have been superseded. For example, they cite what Jesus taught in Mark 7: what you eat doesn't make you unclean but what comes out of a man's heart makes him unclean—although Roman Catholicism and Eastern Orthodoxy have their own set of dietary observances. Eastern Orthodoxy, in particular has very elaborate and strict rules of fasting, and continues to observe the Council of Jerusalem's apostolic decree of Act 15.

Some Christian denominations observe some biblical food laws, for example, the practice of Ital in Rastafari. Jehovah's Witnesses do not eat blood products and are known for their refusal to accept blood transfusions based on not "eating blood".

Salvation
Judaism does not see human beings as inherently flawed or sinful and needful of being saved from it, but rather capable with a free will of being righteous, and unlike Christianity does not closely associate ideas of "salvation" with a New Covenant delivered by a Jewish messiah, although in Judaism Jewish people will have a renewed national commitment of observing God's commandments under the New Covenant, and the Jewish Messiah will also be ruling at a time of global peace and acceptance of God by all people.

Judaism holds instead that proper living is accomplished through good works and heartfelt prayer, as well as a strong faith in God. Judaism also teaches that gentiles can receive a share in "the world to come". This is codified in the Mishna Avot 4:29, the Babylonian Talmud in tractates Avodah Zarah 10b, and Ketubot 111b, and in Maimonides's 12th century law code, the Mishneh Torah, in Hilkhot Melachim (Laws of Kings) 8.11.

The Protestant view is that every human is a sinner, and being saved by God's grace, not simply by the merit of one's own actions, pardons a damnatory sentence to Hell.

Forgiveness
In Judaism, one must go to those he has harmed to be entitled to forgiveness. This means that in Judaism a person cannot obtain forgiveness from God for wrongs the person has done to other people. This also means that, unless the victim forgave the perpetrator before he died, murder is unforgivable in Judaism, and they will answer to God for it, though the victims' family and friends can forgive the murderer for the grief they caused them.

Thus the "reward" for forgiving others is not God's forgiveness for wrongs done to others, but rather help in obtaining forgiveness from the other person.

Sir Jonathan Sacks, Chief Rabbi of the United Hebrew Congregations of the Commonwealth, summarized: "it is not that God forgives, while human beings do not. To the contrary, we believe that just as only God can forgive sins against God, so only human beings can forgive sins against human beings."

Judgment
Both Christianity and Judaism believe in some form of judgment. Most Christians (the exception is Full Preterism) believe in the future Second Coming of Jesus, which includes the Resurrection of the Dead and the Last Judgment. Those who have accepted Jesus as their personal saviour will be saved and live in God's presence in the Kingdom of Heaven, those who have not accepted Jesus as their saviour, will be cast into the Lake of fire (eternal torment, finite torment, or simply annihilated), see for example The Sheep and the Goats.

In Jewish liturgy there is significant prayer and talk of a "book of life" that one is written into, indicating that God judges each person each year even after death. This annual judgment process begins on Rosh Hashanah and ends with Yom Kippur. Additionally, God sits daily in judgment concerning a person's daily activities. Upon the anticipated arrival of the Messiah, God will judge the nations for their persecution of Israel during the exile. Later, God will also judge the Jews over their observance of the Torah.

Heaven and Hell
There is little Jewish literature on heaven or hell as actual places, and there are few references to the afterlife in the Hebrew Bible. One is the ghostly apparition of Samuel, called up by the Witch of Endor at King Saul's command. Another is a mention by the Prophet Daniel of those who sleep in the earth rising to either everlasting life or everlasting abhorrence.

Early Hebrew views were more concerned with the fate of the nation of Israel as a whole, rather than with individual immortality. A stronger belief in an afterlife for each person developed during the Second Temple period but was contested by various Jewish sects. Pharisees believed that in death, people rest in their graves until they are physically resurrected with the coming of the Messiah, and within that resurrected body the soul would exist eternally. Maimonides also included the concept of resurrection in his Thirteen Principles of Faith.

Judaism's view is summed up by a biblical observation about the Torah: in the beginning God clothes the naked (Adam), and at the end God buries the dead (Moses). The Children of Israel mourned for 40 days, then got on with their lives.

In Judaism, Heaven is sometimes described as a place where God debates Talmudic law with the angels, and where Jews spend eternity studying the Written and Oral Torah. Jews do not believe in "Hell" as a place of eternal torment. Gehenna is a place or condition of purgatory where Jews spend up to twelve months purifying to get into heaven, depending on how sinful they have been, although some suggest that certain types of sinners can never be purified enough to go to heaven and rather than facing eternal torment, simply cease to exist. Therefore, some violations like suicide would be punished by separation from the community, such as not being buried in a Jewish cemetery (in practice, rabbis often rule suicides to be mentally incompetent and thus not responsible for their actions). Judaism also does not have a notion of hell as a place ruled by Satan since God's dominion is total and Satan is only one of God's angels.

Catholics also believe in a purgatory for those who are going to heaven, but Christians in general believe that Hell is a fiery place of torment that never ceases, called the Lake of Fire. A small minority believe this is not permanent, and that those who go there will eventually either be saved or cease to exist. Heaven for Christians is depicted in various ways. As the Kingdom of God described in the New Testament and particularly the Book of Revelation, Heaven is a new or restored earth, a World to Come, free of sin and death, with a New Jerusalem led by God, Jesus, and the most righteous of believers starting with 144,000 Israelites from every tribe, and all others who received salvation living peacefully and making pilgrimages to give glory to the city.

In Christianity, promises of Heaven and Hell as rewards and punishments are often used to motivate good and bad behavior, as threats of disaster were used by prophets like Jeremiah to motivate the Israelites. Modern Judaism generally rejects this form of motivation, instead teaching to do the right thing because it's the right thing to do. As Maimonides wrote: "A man should not say: I shall carry out the precepts of the Torah and study her wisdom in order to receive all the blessings written therein or in order to merit the life of the World to Come and I shall keep away from the sins forbidden by the Torah in order to be spared the curses mentioned in the Torah or in order not to be cut off from the life of the World to Come. It is not proper to serve God in this fashion. For one who serves thus serves out of fear. Such a way is not that of the prophets and sages. Only the ignorant, and the women and children serve God in this way. These are trained to serve out of fear until they obtain sufficient knowledge to serve out of love. One who serves God out of love studies the Torah and practices the precepts and walks in the way of wisdom for no ulterior motive at all, neither out of fear of evil nor in order to acquire the good, but follows the truth because it is true and the good will follow the merit of attaining to it. It is the stage of Abraham our father whom the Holy One, blessed be God, called "My friend" (Isaiah 41:8 – ohavi = the one who loves me) because he served out of love alone. It is regarding this stage that the Holy One, Blessed be God, commanded us through Moses, as it is said: "You shall love the Lord your God" (Deuteronomy 6:5). When man loves God with a love that is fitting he automatically carries out all the precepts of love. (Maimonides Yad Chapter 10, quoted in Jacobs 1973: 159)

The Messiah
Jews believe that a descendant of King David will one day appear to restore the Kingdom of Israel and usher in an era of peace, prosperity, and spiritual understanding for Israel and all the nations of the world. Jews refer to this person as Moshiach or "anointed one", translated as messiah in English. The traditional Jewish understanding of the messiah is that he is fully human and born of human parents without any supernatural element. The messiah is expected to have a relationship with God similar to that of the prophets of the Tanakh. In his commentary on the Talmud, Maimonides (Rabbi Moshe ben Maimon) wrote:

 * All of the people Israel will come back to Torah; The people of Israel will be gathered back to the land of Israel; The Temple in Jerusalem will be rebuilt; Israel will live among the nations as an equal, and will be strong enough to defend herself; Eventually, war, hatred and famine will end, and an era of peace and prosperity will come upon the Earth.

He adds:
 * "And if a king shall stand up from among the House of David, studying Torah and indulging in commandments like his father David, according to the written and oral Torah, and he will coerce all Israel to follow it and to strengthen its weak points, and will fight The Lord's wars, this one is to be treated as if he were the anointed one. If he succeeded [and won all nations surrounding him. Old prints and mss.] and built a Holy Temple in its proper place and gathered the strayed ones of Israel together, this is indeed the anointed one for certain, and he will mend the entire world to worship the Lord together ... But if he did not succeed until now, or if he was killed, it becomes known that he is not this one of whom the Torah had promised us, and he is indeed like all [other] proper and wholesome kings of the House of David who died."

He also clarified the nature of the Messiah:
 * "Do not imagine that the anointed King must perform miracles and signs and create new things in the world or resurrect the dead and so on. The matter is not so: For Rabbi Akiba was a great scholar of the sages of the Mishnah, and he was the assistant-warrior of the king Ben Coziba Simon bar Kokhba... He and all the Sages of his generation deemed him the anointed king, until he was killed by sins; only since he was killed, they knew that he was not. The Sages asked him neither a miracle nor a sign..."

The Christian view of Jesus as Messiah goes beyond such claims and is the fulfillment and union of three anointed offices; a prophet like Moses who delivers God's commands and covenant and frees people from bondage, a High Priest in the order of Melchizedek overshadowing the Levite priesthood and a king like King David ruling over Jews, and like God ruling over the whole world and coming from the line of David.

For Christians, Jesus is also fully human and fully divine as the Word of God who sacrifices himself so that humans can receive salvation. Jesus sits in Heaven at the Right Hand of God and will judge humanity in the end times when he returns to earth.

Christian readings of the Hebrew Bible find many references to Jesus. This can take the form of specific prophesy, and in other cases of foreshadowing by types or forerunners. Traditionally, most Christian readings of the Bible maintained that almost every prophecy was actually about the coming of Jesus, and that the entire Old Testament of the Bible is a prophecy about the coming of Jesus.

Catholic views
Catholicism teaches Extra Ecclesiam Nulla Salus ("Outside the Church there is no salvation"), which some, like Fr. Leonard Feeney, interpreted as limiting salvation to Catholics only. At the same time, it does not deny the possibility that those not visibly members of the Church may attain salvation as well. In recent times, its teaching has been most notably expressed in the Vatican II council documents Unitatis Redintegratio (1964), Lumen gentium (1964), Nostra aetate (1965), an encyclical issued by Pope John Paul II: Ut unum sint (1995), and in a document issued by the Congregation for the Doctrine of the Faith, Dominus Iesus in 2000. The latter document has been criticised for claiming that non-Christians are in a "gravely deficient situation" as compared to Catholics, but also adds that "for those who are not formally and visibly members of the Church, salvation in Christ is accessible by virtue of a grace which, while having a mysterious relationship to the Church, does not make them formally part of the Church, but enlightens them in a way which is accommodated to their spiritual and material situation."

Pope John Paul II on 2 October 2000 emphasized that this document did not say that non-Christians were actively denied salvation: "...this confession does not deny salvation to non-Christians, but points to its ultimate source in Christ, in whom man and God are united". On 6 December the Pope issued a statement to further emphasize that the Church continued to support its traditional stance that salvation was available to believers of other faiths: "The gospel teaches us that those who live in accordance with the Beatitudes—the poor in spirit, the pure of heart, those who bear lovingly the sufferings of life—will enter God's kingdom." He further added, "All who seek God with a sincere heart, including those who do not know Christ and his church, contribute under the influence of Grace to the building of this Kingdom." On 13 August 2002 American Catholic bishops issued a joint statement with leaders of Reform and Conservative Judaism, called "Reflections on Covenant and Mission", which affirmed that Christians should not target Jews for conversion. The document stated: "Jews already dwell in a saving covenant with God" and "Jews are also called by God to prepare the world for God's Kingdom." However, many Christian denominations still believe it is their duty to reach out to "unbelieving" Jews.

In December 2015, the Vatican released a 10,000-word document that, among other things, stated that Jews do not need to be converted to find salvation, and that Catholics should work with Jews to fight antisemitism.

Eastern Orthodox views
Eastern Orthodox Christianity emphasizes a continuing life of repentance or metanoia, which includes an increasing improvement in thought, belief and action. Regarding the salvation of Jews, Muslims, and other non-Christians, the Orthodox have traditionally taught that there is no salvation outside the church. Orthodoxy recognizes that other religions may contain truth, to the extent that they are in agreement with Christianity.

God is thought to be good, just, and merciful; it would not seem just to condemn someone because they never heard the Gospel message, or were taught a distorted version of the Gospel by heretics. Therefore, the reasoning goes, they must at some point have an opportunity to make a genuine informed decision. Ultimately, those who persist in rejecting God condemn themselves, by cutting themselves off from the ultimate source of all Life, and from the God who is Love embodied. Jews, Muslims, and members of other faiths, then, are expected to convert to Christianity in the afterlife.

Proselytizing
Judaism is not a proselytizing religion. Orthodox Judaism deliberately makes it very difficult to convert and become a Jew, and requires a significant and full-time effort in living, study, righteousness, and conduct over several years. The final decision is by no means a foregone conclusion. A person cannot become Jewish by marrying a Jew, or by joining a synagogue, nor by any degree of involvement in the community or religion, but only by explicitly undertaking intense, formal, and supervised work over years aimed towards that goal. Some less strict versions of Judaism have made this process somewhat easier but it is still far from common.

In the past, scholars understood Judaism to have an evangelistic drive, but today's scholars are inclined to the view that it was often more akin just to "greater openness to converts" rather than active soliciting of conversions. Since Jews believe that one need not be a Jew to approach God, there is no religious pressure to convert non-Jews to their faith. Indeed, Scholars have revisited the traditional claims about Jewish proselytizing and have brought forward a variety of new insights. McKnight and Goodman have argued persuasively that a distinction ought to be made between the passive reception of converts or interested Pagans, and an active desire or intent to convert the non-Jewish world to Judaism.

The Chabad-Lubavitch branch of Hasidic Judaism has been an exception to this non-proselytizing standard, since in recent decades it has been actively promoting Noahide Laws for gentiles as an alternative to Christianity.

By contrast, Christianity is an explicitly evangelistic religion. Christians are commanded by Jesus to "Therefore go and make disciples of all nations". Historically, evangelism has on rare occasions led to forced conversion under threat of death or mass expulsion.

Common Jewish views of Christianity
Many Jews view Jesus as one in a long list of failed Jewish claimants to be the Messiah, none of whom fulfilled the tests of a prophet specified in the Law of Moses. Others see Jesus as a teacher who worked with the gentiles and ascribe the messianic claims that Jews find objectionable to his later followers. Because much physical and spiritual violence was done to Jews in the name of Jesus and his followers, and because evangelism is still an active aspect of many churches' activities, many Jews are uncomfortable with discussing Jesus and treat him as a non-person. In answering the question "What do Jews think of Jesus", philosopher Milton Steinberg claims, for Jews, Jesus cannot be accepted as anything more than a teacher. "In only a few respects did Jesus deviate from the Tradition," Steinberg concludes, "and in all of them, Jews believe, he blundered."

Judaism does not believe that God requires the sacrifice of any human. This is emphasized in Jewish traditions concerning the story of the Akedah, the binding of Isaac. In the Jewish explanation, this is a story in the Torah whereby God wanted to test Abraham's faith and willingness, and Isaac was never going to be actually sacrificed. Thus, Judaism rejects the notion that anyone can or should die for anyone else's sin. Judaism is more focused on the practicalities of understanding how one may live a sacred life in the world according to God's will, rather than a hope of a future one. Judaism does not believe in the Christian concept of hell but does have a punishment stage in the afterlife (i.e. Gehenna, a term that also appears in the New Testament and translated as hell) as well as a Heaven (Gan Eden), but the religion does not intend it as a focus.

Judaism views the worship of Jesus as inherently polytheistic, and rejects the Christian attempts to explain the Trinity as a complex monotheism. Christian festivals have no religious significance in Judaism and are not celebrated, but some secular Jews in the West treat Christmas as a secular holiday.

Common Christian views of Judaism
Christians believe that Christianity is the fulfillment and successor of Judaism, retaining much of its doctrine and many of its practices including monotheism, the belief in a Messiah, and certain forms of worship like prayer and reading from religious texts. Christians believe that Judaism requires blood sacrifice to atone for sins, and believe that Judaism has abandoned this since the destruction of the Second Temple. Most Christians consider the Mosaic Law to have been a necessary intermediate stage, but that once the crucifixion of Jesus occurred, adherence to civil and ceremonial Law was superseded by the New Covenant.

Some Christians adhere to New Covenant theology, which states that with the arrival of his New Covenant, Jews have ceased being blessed under his Mosaic covenant. This position has been softened or disputed by other Christians, where Jews are recognized to have a special status under the Abrahamic covenant. New Covenant theology is thus in contrast to Dual-covenant theology.

Some Christians who view the Jewish people as close to God seek to understand and incorporate elements of Jewish understanding or perspective into their beliefs as a means to respect their "parent" religion of Judaism, or to more fully seek out and return to their Christian roots. Christians embracing aspects of Judaism are sometimes criticized as Biblical Judaizers by Christians when they pressure gentile Christians to observe Mosaic teachings rejected by most modern Christians.

Commonwealth Theology (CT) asserts that Judeo-Christian tensions were exacerbated in the fall of Jerusalem and by the subsequent Jewish Revolt. As a result, early Christian theologies formulated in the Roman capitals of Rome and Constantinople began to include antisemitic attitudes, which have been carried forward and embraced by the Protestant Reformers. Dispensation Theology, formalized in the 1830s by John Darby, holds that "God has not rejected His people whom He foreknew." Dispensationalism, however, maintains that God's special dealings with Israel have been interrupted by the Church Age. Commonwealth Theology, on the other hand, recognizes the continuity of God's "congregation in the wilderness" as presently consisting of the Jews (house of Judah) and the Nations (Gentiles), among whom are abiding the historically scattered Northern Kingdom (house of Israel). Commonwealth Theology views the Jews as already included in Commonwealth of Israel even while in unbelief, but nevertheless unsaved in their unbelieving state. CT recognizes that both the reconciliation of the Jewish house and the reconciliation of the estranged house of Israel (among the Gentiles) was accomplished by the cross; and that the salvation of "All Israel" is a process that began on the Day of Pentecost. The full realization of the "one new man" created through the peace (between the Jews and "you Gentiles") made by his cross will take place in Ezekiel's two sticks made one, when both houses of Israel will be united under the Kingdom of David.

Jewish Christians
Some scholars have found evidence of continuous interactions between Jewish-Christian and rabbinic movements from the mid- to late second century CE to the fourth century CE. Of particular importance is the figure of James the brother of Jesus, the leader of the Christian Church in Jerusalem until he was killed in the year 62, who was known for his righteous behavior as a Jew, and set the terms of the relationship between Jewish Christians and Gentile Christians in dialogue with Paul. To him is attributed a letter which emphasizes the view that faith must be expressed in works. The neglect of this mediating figure has often damaged Christian-Jewish relations. Modern scholarship is engaged in an ongoing debate over which term should be used as the proper designation for Jesus' first followers. Many scholars believe that the term Jewish Christians is anachronistic given the fact that there is no consensus on the date of the birth of Christianity. The very concepts of Christianity and Judaism can be seen as essentializing, since these are changing and plural traditions. Clearly, the first Christians would not have believed that they were exchanging one religion for another, because they believed that the resurrection of Jesus was the fulfillment of Jewish prophecies, and they believed that the mission to the gentiles which was initiated by Saul (Paul of Tarsus) was a secondary activity. Some modern scholars have suggested that the designations "Jewish believers in Jesus" and "Jewish followers of Jesus" better reflect the original context.

Inter-faith relationship

In addition to Christianity and Judaism's varying views on each other as religions, there has also been a long and often painful history of conflict, persecution and at times, reconciliation, between the two religions, which have influenced their mutual views of their relationship with each other over time. Since the end of the Second World War and The Holocaust, Christianity has embarked on a process of introspection with regard to its Jewish roots and its attitudes toward Judaism. The eradication of the anti-Jewish tendencies is but one dimension of this ongoing Christian introspection, that attempts to engage a variety of legacies that disturb modern believers (Antisemitism, slavery, racial and ethnic prejudice, colonialism, sexism, homophobia and religious persecution).

Since the Middle Ages, the Catholic Church upheld Constitutio pro Judæis (Formal Statement on the Jews), which stated "We decree that no Christian shall use violence to force them to be baptized, so long as they are unwilling and refuse. ... Without the judgment of the political authority of the land, no Christian shall presume to wound them or kill them or rob them of their money or change the good customs that they have thus far enjoyed in the place where they live.'"

Persecution, forcible conversion, and forcible displacement of Jews (i.e. hate crimes) occurred for many centuries, along with occasional gestures at reconciliation which also occurred from time to time. Pogroms were a common occurrence throughout Christian Europe, including organized violence, restrictions on land ownership and professional lives, forcible relocation and ghettoization, mandatory dress codes, and at times, humiliating actions and torture. All of these actions and restrictions had major effects on Jewish cultures. From the fifth century onward, Church councils imposed ever-increasing burdens and limitations on the Jews. Among the decrees: marriages between a Jew and a Christian were forbidden ( Orleans, 533 and 538; Clermont, 535; Toledo, 589 and 633). Jews and Christians forbidden to eat together (Vannes, 465; Agde, 506; Epaone, 517; Orleans, 538; Macon, 583; Clichy, 626–7). Jews banned from public office ( Clermont, 535; Toledo, 589; Paris, 614–5; Clichy, 626–7; Toledo, 633). Jews were forbidden to appear in public during Easter ( Orleans, 538; Macon, 583) and to work on Sunday (Narbonne, 589). By the end of the first millennium, the Jewish population in the Christian lands had been decimated, expelled, forced into conversion or worse. Only a few small and scattered communities survived.

There have also been non-coercive outreach and missionary efforts such as the Church of England's Ministry Among Jewish People, founded in 1809.

For Martin Buber, Judaism and Christianity were variations on the same theme of messianism. Buber made this theme the basis of a famous definition of the tension between Judaism and Christianity: Pre-messianically, our destinies are divided. Now to the Christian, the Jew is the incomprehensibly obdurate man who declines to see what has happened; and to the Jew, the Christian is the incomprehensibly daring man who affirms in an unredeemed world that its redemption has been accomplished. This is a gulf which no human power can bridge.

The Nazi Party was known for its persecution of Christian Churches; many of them, such as the Protestant Confessing Church and the Catholic Church, as well as Quakers and Jehovah's Witnesses, aided and rescued Jews who were being targeted by the régime.

Following the Holocaust, attempts have been made to construct a new Jewish-Christian relationship of mutual respect for differences, through the inauguration of the interfaith body the Council of Christians and Jews in 1942 and International Council of Christians and Jews. The Seelisberg Conference in 1947 established 10 points relating to the sources of Christian antisemitism. The ICCJ's "Twelve points of Berlin" sixty years later aim to reflect a recommitment to interreligious dialogue between the two communities.

Pope John Paul II and the Catholic Church have "upheld the Church's acceptance of the continuing and permanent election of the Jewish people" as well as a reaffirmation of the covenant between God and the Jews. In December 2015, the Vatican released a 10,000-word document that, among other things, stated that Catholics should work with Jews to fight antisemitism.

Orthodox Rabbinic Statement on Christianity
In 2012, the book Kosher Jesus by Orthodox Rabbi Shmuley Boteach was published. In it, he takes the position that Jesus was a wise and learned Torah-observant Jewish rabbi. Boteach says he was a beloved member of the Jewish community. At the same time, Jesus is said to have despised the Romans for their cruelty, and fought them courageously. The book states that the Jews had nothing whatsoever to do with the murder of Jesus, but rather that blame for his trial and killing lies with the Romans and Pontius Pilate. Boteach states clearly that he does not believe in Jesus as the Jewish Messiah. At the same time, Boteach argues that "Jews have much to learn from Jesus - and from Christianity as a whole - without accepting Jesus' divinity. There are many reasons for accepting Jesus as a man of great wisdom, beautiful ethical teachings, and profound Jewish patriotism." He concludes by writing, as to Judeo-Christian values, that "the hyphen between Jewish and Christian values is Jesus himself."

On 3 December 2015, the Center for Jewish-Christian Understanding and Cooperation (CJCUC) spearheaded a petition of Orthodox rabbis from around the world calling for increased partnership between Jews and Christians. The unprecedented Orthodox Rabbinic Statement on Christianity, entitled "To Do the Will of Our Father in Heaven: Toward a Partnership between Jews and Christians", was initially signed by over 25 prominent Orthodox rabbis in Israel, the United States, and Europe, and as of 2016 had over 60 signatories.

Between Jerusalem and Rome
On 31 August 2017, representatives of the Conference of European Rabbis, the Rabbinical Council of America, and the Commission of the Chief Rabbinate of Israel issued and presented the Holy See with a statement entitled Between Jerusalem and Rome. The document pays particular tribute to the Second Vatican Council's Declaration Nostra Aetate, whose fourth chapter represents the "Magna Carta" of the Holy See's dialogue with the Jewish world. The Statement Between Jerusalem and Rome does not hide the theological differences that exist between the two faith traditions while all the same it expresses a firm resolve to collaborate more closely, now and in the future.

title: Christianity and Judaism