Fast of the Firstborn tends to precipitate contrition in the one who fasts (see Joel, 2:12–18). This is why the Bible requires fasting (lit. self-affliction) on Yom Kippur (Jewish holiday of atonement) (see Leviticus, 23:27,29,32; Numbers, 29:7; Tractate "Yoma", 8:1; ibid. Babylonian Talmud, 81a). Because, according to the Hebrew Bible, hardship and calamitous circumstances can occur as a result of wrongdoing (see, for example, Leviticus 26:14–41), fasting is often undertaken by the community or by individuals to achieve atonement and avert catastrophe (see, for example, Esther 4:3,16; Jonah 3:7). Most of the Talmud's Tractate "Ta'anit" ("Fast[s]") is dedicated to the protocol involved in declaring
Christian observances of Jewish holidays other Christians, in their weddings the bride stands on the right side of the groom resembling the Jewish custom and during the wedding a veil is given to the bride. The traditional Christian holiday of Pentecost is based on the Jewish holiday of "Shavuot" celebrated seven weeks after the start of Passover. Pentecost is part of the Movable Cycle of the ecclesiastical year. Pentecost is always seven weeks after the day after the Sabbath day which always occurs during the feast of unleavened bread. Rabbinic Jews avoid celebration of Shavuot on the day after the Sabbath (the first day of