Jewish religious movements in the context of "Orthodox Judaism"

Jewish Christians were the followers of a Jewish religious sect that emerged in Roman Judea during the late Second Temple period, under the Herodian tetrarchy (1st century AD). These Jews believed that Jesus was the prophesied Messiah and they continued their adherence to Jewish law. Jewish Christianity is the historical foundation of Early Christianity, which later developed into Nicene Christianity (which comprises the Roman Catholic, Eastern Orthodox, Oriental Orthodox, and Protestant traditions) and other Christian denominations.

Christianity started with Jewish eschatological expectations, and it developed into the worship of Jesus as the result of his earthly ministry in Galilee and Jerusalem, his crucifixion, and the post-resurrection experiences of his followers. Jewish Christians drifted apart from Second Temple Judaism, and their form of Judaism eventually became a minority strand within mainstream Judaism, as it had almost disappeared by the 5th century AD. Jewish–Christian gospels are lost except for fragments, so there is a considerable amount of uncertainty about the scriptures which were used by this group of Christians.

Christianity in the 1st century covers the formative history of Christianity from the start of the ministry of Jesus (c. 27–29 AD) to the death of the last of the Twelve Apostles (c. 100) and is thus also known as the Apostolic Age. Early Christianity developed out of the eschatological ministry of Jesus. Subsequent to Jesus' death, his earliest followers formed an apocalyptic messianic Jewish sect during the late Second Temple period of the 1st century. Initially believing that Jesus' resurrection was the start of the end time, their beliefs soon changed in the expected Second Coming of Jesus and the start of God's Kingdom at a later point in time.

Paul the Apostle, a Pharisee Jew, who had persecuted the early Christians of the Roman Province of Judea, converted c. 33–36 and began to proselytize among the Gentiles. According to Paul, Gentile converts could be allowed exemption from Jewish commandments, arguing that all are justified by their faith in Jesus. This was part of a gradual split between early Christianity and Judaism, as Christianity became a distinct religion including predominantly Gentile adherence.

Messianic Judaism is a syncretic Protestant Christian religious sect that incorporates elements of Jewish practice. It considers itself to be a form of Judaism but is generally considered to be a form of Christianity, including by all mainstream Jewish religious movements. Its roots are in Christian missionary activity aimed at Jews in the 19th and 20th centuries, particularly in North America.

Messianic Jews believe that Jesus was the Messiah and a divine being in the form of God the Son (a member of the Trinity), some of the most defining distinctions between Christianity and Judaism. Messianic Judaism is also generally considered a Protestant Christian sect by scholars and other Christian groups.

Jewish philosophy (Hebrew: פילוסופיה יהודית) includes all philosophy carried out by Jews or in relation to the religion of Judaism. Until the modern Haskalah (Jewish Enlightenment) and Jewish emancipation, Jewish philosophy was preoccupied with attempts to reconcile coherent new ideas into the tradition of Rabbinic Judaism, thus organizing emergent ideas that are not necessarily Jewish into a uniquely Jewish scholastic framework and worldview. With their admission into broader modern society, Jews with secular educations embraced or developed entirely new philosophies to meet the world's demands in which they now found themselves.

Medieval rediscovery of ancient Greek philosophy among the Geonim of 10th-century Babylonian academies brought rationalist philosophy into Biblical-Talmudic Judaism. During the Geonic period, philosophy was generally in competition with Kabbalah. Both schools would become part of classic Rabbinic literature, though the decline of scholastic rationalism coincided with historical events that drew Jews to the Kabbalistic approach. For the Ashkenazi Jews of Western Europe, emancipation and encounters with secular thought from the 18th century onwards altered how philosophy was viewed. Ashkenazi Jews in Eastern Europe and Sephardi communities had comparatively later, more ambivalent interactions with secular cultures than those of Western Europe. In the varied responses to modernity, Jewish philosophical ideas were developed across a range of emerging religious movements. These developments could be seen as either the continuation of or breaks from the canon of Rabbinic philosophy of the Middle Ages and the other historical dialectic aspects of Jewish thought, resulting in diverse contemporary Jewish attitudes to philosophical methods.

The Pharisees (/ˈfærəsiːz/; Hebrew: פְּרוּשִׁים, romanized: Pərūšīm, lit. 'separated ones') were a Jewish social movement and school of thought in the Levant during the time of Second Temple Judaism. Following the destruction of the Second Temple in 70 AD, Pharisaic beliefs became the foundational, liturgical, and ritualistic basis for Rabbinic Judaism. Although the group no longer exists, their traditions are of great importance for the manifold Jewish religious movements.

Conflicts between Pharisees and Sadducees took place in the context of much broader and longstanding social and religious conflicts amongst Jews (exacerbated by the Roman conquest). One conflict was cultural, between those who favored Hellenization (the Sadducees) and those who resisted it (the Pharisees). Another was juridical-religious, between those who emphasized the importance of the Temple with its rites and services, and those who emphasized the importance of other Mosaic Laws. A specifically religious point of conflict involved different interpretations of the Torah and how to apply it to Jewish life: Sadducees recognized only the Written Torah (תּוֹרָה שֶׁבִּכְתָב‎, Tōrā šebbīḵṯāv, '"Written Law"'), rejecting Prophets, Writings, and doctrines such as the Oral Torah and the resurrection of the dead.

Reform Judaism, also known as Liberal Judaism or Progressive Judaism, is a major Jewish denomination that emphasizes the evolving nature of Judaism, the superiority of its ethical aspects to its ceremonial ones, and belief in a continuous revelation which is closely intertwined with human reason and not limited to the theophany at Mount Sinai. A liberal strand of Judaism, it is characterized by little stress on ritual and personal observance, regarding Jewish law as non-binding and the individual Jew as autonomous, and by a great openness to external influences and progressive values.

The origins of Reform Judaism lie in mid-19th-century Germany, where Rabbi Abraham Geiger and his associates formulated its basic principles, attempting to harmonize Jewish tradition with modern sensibilities in the age of emancipation. Understanding Jewish tradition in terms of historical-critical methods and modern philosophy, seeing it as constantly evolving, the early Reform movement sanctioned a conscious adaptation of religious life and the ommission of observances and beliefs considered irrelevant or superstitious. In the public sphere it removed parts of the liturgy pertaining to concepts discarded by it, like bodily resurrection of the dead or the restoration of the sacrifical cult in Jerusalem, and translated much of the prayer from Hebrew to the vernacular German. In the private sphere it condoned and legitimized the widespread abandonment of personal observance of dietary, Sabbath and other ritual laws. European Reform was often conservative, having to co-exist with traditionalist elements within long-established communities. Brought to America by German-born rabbis, the denomination gained prominence in the United States, flourishing from the 1860s to the 1930s in an era known as "Classical Reform". In the American setting, Reform Judaism was free to exercise its ideas without restriction, adopting a universalist approach with little place for Jewish particularism and disposing of most traditional practice. Almost all of the liturgy was in English, converts and male babies were not required to undergo circumcision, and many congregations celebreated the Sabbath also on Sunday. The arrival in America of numerous Eastern European Jewish immigrants, who were generally traditional, led to a renewed interest in observance and collective identity, officially enshrined by the 1937 Columbus platform. Since the 1970s, the movement has adopted a policy of inclusiveness and acceptance, inviting as many as possible to partake in its communities rather than adhering to strict theoretical clarity, becoming extremely diverse. It is strongly identified with progressive and liberal agendas in political and social terms, mainly under the traditional Jewish rubric tikkun olam ("repairing of the world"). Tikkun olam is a central motto of Reform Judaism, and acting in its name is one of the main channels for adherents to express their affiliation. The movement's most significant center is in North America.

Conservative Judaism, also known as Masorti Judaism, is a Jewish religious movement that regards the authority of Jewish law and tradition as emanating primarily from the assent of the people through the generations, more than from divine revelation. It therefore views Jewish law, or Halakha, as both binding and subject to historical development. The Conservative rabbinate employs modern historical-critical research, rather than only traditional methods and sources, and lends great weight to its constituency, when determining its stance on matters of practice. The movement considers its approach as the authentic and most appropriate continuation of Halakhic discourse, maintaining both fealty to received forms and flexibility in their interpretation. It also eschews strict theological definitions, lacking a consensus in matters of faith and allowing great pluralism.

Reconstructionist Judaism is a Jewish movement based on the concepts developed by Rabbi Mordecai Kaplan (1881–1983)—namely, that Judaism is a progressively evolving civilization rather than just a religion. The movement originated as a semi-organized stream within Conservative Judaism, developed between the late 1920s and the 1940s before seceding in 1955, and established a rabbinical college in 1967. Reconstructionist Judaism is recognized by many scholars as one of the five major streams of Judaism in America alongside Orthodox, Conservative, Reform, and Humanistic.

There is substantial theological diversity within the movement. Halakha (Jewish law) is not considered normative or binding, but rather serves as the basis for the ongoing evolution of meaningful Jewish practice. In contrast with the Reform movement's stance during the time he was writing, Kaplan believed that "Jewish life [is] meaningless without Jewish law." One of the planks he wrote for the proto-Reconstructionist Society for the Jewish Renaissance stated, "We accept the halakha, which is rooted in the Talmud, as the norm of Jewish life, availing ourselves, at the same time, of the method implicit therein to interpret and develop the body of Jewish Law by the actual conditions and spiritual needs of modern life." The movement also emphasizes positive views toward modernity. It has an approach to Jewish customs that aims toward communal decision-making through a process of education and distillation of values from traditional Jewish sources.