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
Jewish day school Not all schools are similar in size. For example, Chabad day schools make up 9 percent of all US Jewish day schools, but have enrolled only 5 percent of students attending such schools. Jewish day school A Jewish day school is a modern Jewish educational institution that is designed to provide children of Jewish parents with both a Jewish and a secular education in one school on a full-time basis. The term "day school" is used to differentiate schools attended during the day from their secular or religious "boarding school" equivalents where the students live full-time as well as study.