Reconstructionist Judaism in the context of "Bar and bat mitzvah"

Jewish religious movements, sometimes called "denominations", include diverse groups within Judaism which have developed among Jews from ancient times. Samaritans are also considered ethnic Jews by the Chief Rabbinate of Israel, although they are frequently classified by experts as a sister Hebrew people, who practice a separate branch of Israelite religion. Today in the West, the most prominent divisions are between traditionalist Orthodox movements (including Haredi ultratraditionalist and Modern Orthodox branches) and modernist movements such as Reform Judaism originating in late 18th century Europe, Conservative (Masorti) originating in 19th century Europe, and other smaller ones, including the Reconstructionist and Renewal movements which emerged later in the 20th century in the United States.

In Israel, variation is moderately similar, differing from the West in having roots in the Old Yishuv and pre-to-early-state Yemenite infusion, among other influences. For statistical and practical purposes, the distinctions there are based upon a person's attitude to religion. Most Jewish Israelis classify themselves as "secular" (hiloni), "traditional" (masortim), "religious" (dati) or ultra-religious (haredi).

A religious denomination is a subgroup within a religion that operates under a common name and tradition, among other activities.The term refers to the various Christian denominations (for example, non-Chalcedonian, Eastern Orthodox, Catholic, and the branches of Protestantism, such as Lutheranism). It is also used to describe the five major branches of Judaism (Karaite Judaism, Orthodox, Conservative, Reform, and Reconstructionist). Within Islam, it can refer to the branches or sects (such as Sunni and Shia), as well as their various subdivisions, such as sub-sects, schools of jurisprudence, schools of theology and religious movements.

The world's largest religious denomination is the Sunni Islam.

Religious Jews are Jews who practice and observe Judaism. They may be affiliated with:

• Karaite Judaism
• Conservative Judaism
• Masorti Judaism
• Orthodox Judaism
  • Hasidic Judaism
  • Religious Zionism
  • Haredi Judaism
  • Modern Orthodox Judaism
• Reconstructionist Judaism
• Reform Judaism
• Jewish Renewal
• Non-Ashkenazi branches, such as Sephardic Judaism

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).

"Who is a Jew?" (Hebrew: מיהו יהודי, romanized: mihu yehudi, pronounced [ˈmi(h)u je(h)uˈdi]), is a basic question about Jewish identity and considerations of Jewish self-identification. The question pertains to ideas about Jewish personhood, which have cultural, ethnic, religious, political, genealogical, and personal dimensions. Orthodox Judaism and Conservative Judaism follow Jewish law (halakha), deeming people to be Jewish if their mothers are Jewish or if they underwent a halakhic conversion. Reform Judaism and Reconstructionist Judaism accept both matrilineal and patrilineal descent as well as conversion. Karaite Judaism predominantly follows patrilineal descent as well as conversion.

Jewish identity is also commonly defined through ethnicity. Opinion polls have suggested that the majority of modern Jews see being Jewish as predominantly a matter of ancestry and culture, rather than religion.

A bar mitzvah (masc.) or bat mitzvah (fem.) is a coming of age ritual in Judaism. According to Jewish law, before children reach a certain age, the parents are responsible for their child's actions. Once Jewish children reach that age, they are said to "become" b'nai mitzvah, at which point they begin to be held accountable for their own actions. Traditionally, the father of a bar or bat mitzvah offers thanks to God that he is no longer punished for his child's sins.

In Orthodox communities, boys become bar mitzvah at 13 and girls become bat mitzvah at 12. In most Reform, Reconstructionist, and Conservative communities, the milestone is 13 regardless of gender. After this point, children are also held responsible for knowing Jewish ritual law, tradition, and ethics, and are able to participate in all areas of Jewish community life to the same extent as adults. In some Jewish communities, men's and women's roles differ in certain respects. For example, in Orthodox Judaism, once a boy turns 13, it is permitted to count him for the purpose of determining whether there is a prayer quorum, and he may lead prayer and other religious services in the family and the community.

Yom Kippur (/ˌjɒm kɪˈpʊər, ˌjɔːm ˈkɪpər, ˌjoʊm-/ YOM kip-OOR, YAWM KIP-ər, YOHM-; Hebrew: יוֹם כִּפּוּר‎ Yōm Kippūr [ˈjom kiˈpuʁ], lit. 'Day of Atonement') is the holiest day of the year in Judaism. It occurs annually on the 10th of Tishrei, corresponding to a date in late September or early October.

For traditional Jewish people, it is primarily centered on atonement and repentance. The day's main observances consist of full fasting and asceticism, both accompanied by extended prayer services (usually at synagogue) and sin confessions. Some minor Jewish denominations, such as Reconstructionist Judaism, focus less on sins and more on one's goals and accomplishments and setting yearly intentions.