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,[1] as recorded in the New Testament. Judaism places emphasis on correct conduct (or orthopraxy),[2][3][4] 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."[5][6][7] 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.
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:
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.[25]