Halakha in the context of "Vilna Gaon"

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.

Comparative law is the study of differences and similarities between the law and legal systems of different countries. More specifically, it involves the study of the different legal systems (or "families") in existence around the world, including common law, civil law, socialist law, Canon law, Jewish Law, Islamic law, Hindu law, and Chinese law. It includes the description and analysis of foreign legal systems, even where no explicit comparison is undertaken. The importance of comparative law has increased enormously in the present age of internationalism and economic globalization.

Religious law includes ethical and moral codes taught by religious traditions. Examples of religiously derived legal codes include Christian canon law (applicable within a wider theological conception in the church, but in modern times distinct from secular state law), Jewish halakha, Islamic sharia, and Hindu law. In some jurisdictions, religious law may apply only to that religion's adherents; in others, it may be enforced by civil authorities for all residents.

In the Ottoman Empire, a millet (Turkish: [millet]; Ottoman Turkish: ملت, Arabic: مِلَّة) was an independent court of law pertaining to "personal law" under which a confessional community (a group abiding by the laws of Muslim sharia, Christian canon law, or Jewish halakha) was allowed to rule itself under its own laws.

Despite frequently being referred to as a "system", before the nineteenth century the organization of what are now retrospectively called millets in the Ottoman Empire was not at all systematic. Rather, non-Muslims were simply given a significant degree of autonomy within their own community, without an overarching structure for the millet as a whole. The notion of distinct millets corresponding to different religious communities within the empire would not emerge until the eighteenth century. Subsequently, the millet system was justified through numerous foundation myths linking it back to the time of Sultan Mehmed the Conqueror (r. 1451–81), although it is now understood that no such system existed in the fifteenth century. Heads of millets, or milletbaşı (Ethnarch), usually had absolute secular and ecclesiastical power over their communities, being answerable only to the Sultan.

A synagogue, or synagog also called a shul or a temple, is a place of worship for Jews and Samaritans. It serves as a house of prayer (with a main sanctuary and sometimes smaller chapels) where Jews attend religious services or ceremonies such as weddings, bar and bat mitzvahs, choir performances, and children's plays. Synagogues often also contain study rooms, social halls, administrative and charitable offices, classrooms for religious and Hebrew studies, and spaces for community gatherings. They frequently display commemorative, historic, or modern artwork alongside items of Jewish historical significance or exhibits about the synagogue itself.

Synagogues are buildings used for Jewish prayer, study, assembly, and reading of the Torah. The Torah (Pentateuch or Five Books of Moses) is traditionally read in its entirety over a period of a year in weekly portions during services, or in some synagogues on a triennial cycle. However, the edifice of a synagogue as such is not essential for holding Jewish worship. Halakha (Jewish law from the Mishnah – the "Oral Torah") states that communal Jewish worship can be carried out wherever a minyan, a group of at least 10 Jewish adult men, is assembled, often (but not necessarily) led by a rabbi. This minyan is the essence of Jewish communal worship, which can also be conducted alone or with fewer than ten people, but that excludes certain prayers as well as communal Torah reading. In terms of its specific ritual and liturgical functions, the synagogue does not replace the long-destroyed Temple in Jerusalem.

A mikveh or Mikvah (Hebrew: מִקְוֶה / מקווה, Modern: mīqve, Tiberian: mīqwe, pl. mikva'ot, mikvot, or (Ashkenazic) mikves, lit. 'a collection') is a bath used for ritual immersion in Judaism to achieve ritual purity.

In Orthodox Judaism, these regulations are steadfastly adhered to; consequently, the mikveh is central to an Orthodox Jewish community. Conservative Judaism also formally holds to the regulations. The existence of a mikveh is considered so important that, according to halacha, a Jewish community is required to construct a kosher mikveh even before building a synagogue, and must go to the extreme of selling Torah scrolls, or even a synagogue if necessary, to provide funding for its construction.

The circumcision of Jesus is an event from the life of Jesus, according to the Gospel of Luke chapter 2, which states:

The eight days after his birth is traditionally observed 1 January. This is in keeping with the Jewish law which holds that males should be circumcised eight days after birth during a Brit milah ceremony, at which they are also given their name. The circumcision of Christ became a very common subject in Christian art from the 10th century onwards, one of numerous events in the Life of Christ to be frequently depicted by artists. It was initially seen only as a scene in larger cycles, but by the Renaissance might be treated as an individual subject for a painting, or form the main subject in an altarpiece.

Biblical law refers to the set of rules found in the Jewish Tanakh, and sometimes also Christian commentaries on these laws in the New Testament. Christianity and Judaism have different approaches to Jewish law.

A rabbi (/ˈræbaɪ/ ; Hebrew: רַבִּי, romanized: rabbī, IPA: [ʁəbːi]) is a spiritual leader or religious teacher in Judaism. A person becomes a rabbi by being ordained by another rabbi—known as semikhah—following a course of study of Jewish history and texts, including the Tanakh, Midrash, Mishnah, Tosefta, Talmud, Halakha, and rabbinic commentaries thereon. The basic form of the rabbi developed between the Second Temple (167 BCE–73 CE)—being heavily influenced by the Pharisees—and Rabbinic periods (70–640 CE), when learned teachers—overlapping with the Tannaim, Amoraim, Savoraim, and early Geonim—assembled to codify Judaism's written and oral laws. The title "rabbi" was first used in the first century CE. In more recent centuries, the duties of a rabbi became increasingly influenced by the duties of the Protestant Christian minister, hence the title "pulpit rabbis." Further, in 19th-century Germany and the United States, rabbinical activities such as delivering sermons, pastoral counseling, and representing the community to the outside all increased in importance.

Within the various Jewish denominations, there are different requirements for rabbinic ordination, and differences in opinion regarding who is recognized as a rabbi. Non-Orthodox movements, including Conservative Judaism, Reform Judaism, Reconstructionist Judaism, and Jewish Renewal, have set their requirements for semikhah based on what they consider halakhic reasons (as in Conservative Judaism) and ethical reasons (as in Reform and Reconstructionist) Judaism).