Judaism and Mormonism of priests that took place at Israel's Tabernacle, the temple of Solomon, and later temples in Jerusalem (see Exod. 28:40–42, 29:4–9, 29:20–21, 29:29–30, 30:18–21). The Hebrew Bible recounts several cases of polygamy among the ancient Hebrews. One source of polygamy was the practice of levirate marriage, wherein a man was required to marry and support his brother's widow. Ashkenazi Jewry has not practiced polygamy since Rabbenu Gershom's ban in the 11th century "except in exceptional circumstances requiring obtaining in advance the permission of 100 rabbis." Some Sephardi and Mizrahi groups, in particular those from Yemen and Iran (where polygamy is
Sephardi Hebrew of Hebrew in Mishnaic times (1st-2nd centuries), with the Sephardi pronunciation being derived from Judaean and the Ashkenazi from Galilean. The theory is supported by the fact that Ashkenazi Hebrew, like Samaritan Hebrew, has lost the distinct sounds of many of the guttural letters, and there are references in the Talmud to that as a feature of Galilean speech. Idelsohn ascribes the Ashkenazi (and, on his theory, Galilean) pronunciation of qamats gadol as to the influence of Phoenician: see Canaanite shift. During the Masoretes (8th-10th centuries), there were three distinct notations for denoting vowels and other details of pronunciation in