MikvehMikveh or mikvah (, () mikva'ot, mikvoth, mikvot, or (Yiddish) mikves, lit., "a collection") is a bath used for the purpose of ritual immersion in Judaism to achieve ritual purity. Most forms of ritual impurity can be purified through immersion in any natural collection of water. However, some impurities, such as a zav, require "living water", such as springs or groundwater wells. Living water has the further advantage of being able to purify even while flowing, as opposed to rainwater which must be stationary to purify.
Abraham ben DavidAbraham ben David (1125 – 27 November 1198), also known by the abbreviation RABaD (for Rabbeinu Abraham ben David) Ravad or RABaD III, was a Provençal rabbi, an important commentator on the Talmud, Sefer Halachot of Rabbi Yitzhak Alfasi (known by the abbreviation RIF) and Mishne Torah of Maimonides, and is regarded as a father of Kabbalah and one of the key links in the chain of Jewish mystics. RABaD's maternal grandfather, Rabbi Yitzhak b.
High Priest of IsraelIn Judaism, the High Priest of Israel (כהן גדול; ) was the head of the Israelite priesthood. He played a unique role in the worship conducted in the Tabernacle and later in the Temple in Jerusalem, as well as in some non-ritual matters. Like all priests, he was required to be descended from Aaron (the first biblical priest). But unlike other priests, the high priest followed more restrictive laws, wore unique priestly garments, and was the only priest allowed to perform certain ceremonies.
Rabbinic literatureRabbinic literature, in its broadest sense, is the entire spectrum of rabbinic writings throughout Jewish history. However, the term often refers specifically to literature from the Talmudic era, as opposed to medieval and modern rabbinic writing, and thus corresponds with the Hebrew term Sifrut Chazal (ספרות חז״ל "Literature [of our] sages", where Hazal normally refers only to the sages of the Talmudic era).
Orthodox JudaismOrthodox Judaism is the collective term for the traditionalist branches of contemporary Judaism. Theologically, it is chiefly defined by regarding the Torah, both Written and Oral, as revealed by God to Moses on Mount Sinai and faithfully transmitted ever since. Orthodox Judaism, therefore, advocates a strict observance of Jewish law, or halakha, which is to be interpreted and determined exclusively according to traditional methods and in adherence to the continuum of received precedent through the ages.
