Halakha, also transliterated as halacha, halakhah, and halocho, is the collective body of Jewish religious laws that are derived from the Written and Oral Torah. Halakha is based on biblical commandments (mitzvot), subsequent Talmudic and rabbinic laws, and the customs and traditions which were compiled in the many books such as the Shulchan Aruch. Halakha is often translated as "Jewish law", although a more literal translation might be "the way to behave" or "the way of walking". The word is derived from the root which means "to behave". Halakha not only guides religious practices and beliefs; it also guides numerous aspects of day-to-day life.
Orthodox Judaism is a collective term for the traditionalist branches of contemporary Judaism. Theologically, it is chiefly defined by regarding the Torah, both Written and Oral, as literally revealed by God on Mount Sinai and faithfully transmitted ever since.
A rabbi is a spiritual leader or religious teacher in Judaism. One becomes a rabbi by being ordained by another rabbi—known as semikha—following a course of study of Jewish history and texts such as the Talmud. The basic form of the rabbi developed in the Pharisaic and Talmudic eras, when learned teachers 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", and in 19th-century Germany and the United States rabbinic activities including sermons, pastoral counseling, and representing the community to the outside, all increased in importance.
A yeshiva is a traditional Jewish educational institution focused on the study of Rabbinic literature, primarily the Talmud and halacha, while Torah and Jewish philosophy are studied in parallel. The studying is usually done through daily shiurim as well as in study pairs called chavrusas. Chavrusa-style learning is one of the unique features of the yeshiva.
Torah study is the study of the Torah, Hebrew Bible, Talmud, responsa, rabbinic literature, and similar works, all of which are Judaism's religious texts. According to Rabbinic Judaism, the study is done for the purpose of the mitzvah ("commandment") of Torah study itself.
Modern Orthodox Judaism is a movement within Orthodox Judaism that attempts to synthesize Jewish values and the observance of Jewish law with the modern world.
A Rebbe or Admor is the spiritual leader in the Hasidic movement, and the personalities of its dynasties. The titles of Rebbe and Admor, which used to be a general honorific even before the beginning of the movement, became, over time, almost exclusively identified with its Tzadikim.
Semikhah is the traditional Jewish name for rabbinic ordination.
Jewish religious movements, sometimes called "denominations", include diverse groups within Judaism which have developed among Jews from ancient times. Today in the west, the most prominent divisions are between traditionalist Orthodox movements and modernist movements such as Reform Judaism originating in late 18th century Europe, Conservative 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.
Conversion to Judaism is the process by which non-Jews adopt the Jewish religion and become members of the Jewish ethnoreligious community. It thus resembles both conversion to other religions and naturalization. The procedure and requirements for conversion depend on the sponsoring denomination. Furthermore, a conversion done in accordance with one Jewish denomination is not a guarantee of recognition by another denomination. Normally, though not always, the conversions performed by more stringent denominations are recognized by less stringent ones, but not the other way around. A formal conversion is also sometimes undertaken by individuals whose Jewish ancestry is questioned or uncertain, even if they were raised Jewish, but may not actually be considered Jews according to traditional Jewish law.
Religious Zionism is a religious denomination that views Zionism as a fundamental component of Orthodox Judaism. Its adherents are also referred to as Dati Leumi, and in Israel, they are most commonly known by the plural form of the first part of that term: Datiim. The community is sometimes called 'Knitted kippah', the typical head covering worn by male adherents to Religious Zionism.
Jewish leadership has evolved over time. Since the destruction of the Second Temple in Jerusalem in 70 CE, there has been no single body that has a leadership position over the entire Jewish diaspora. Various branches of Judaism, as well as Jewish religious or secular communities and political movements around the world elect or appoint their governing bodies, often subdivided by country or region.
Schisms among the Jews are cultural as well as religious. They have happened as a product of historical accident, geography, and theology.
Torah Umadda is a worldview in Orthodox Judaism concerning the relationship between the secular world and Judaism, and in particular between secular knowledge and Jewish religious knowledge. The resultant mode of Orthodox Judaism is referred to as Centrist Orthodoxy.
Rabbinic authority in Judaism relates to the theological and communal authority attributed to rabbis and their pronouncements in matters of Jewish law. The extent of rabbinic authority differs by various Jewish groups and denominations throughout history.
Jewish education is the transmission of the tenets, principles, and religious laws of Judaism. Jews value education, and the value of education is strongly embedded in Jewish culture. Judaism places a heavy emphasis on Torah study, from the early days of studying the Tanakh.
Yeshivat Chovevei Torah Rabbinical School (YCT) is a Modern Orthodox yeshiva, previously self-described as Open Orthodox, founded in 1999 by Rabbi Avi Weiss.
Gadol or godol is used by religious Jews to refer to the most revered rabbis of the generation.
