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
Substitutionary atonement technical use of the term "substitution" in discussion about atonement when it is used in "the sense that [Jesus, through his death,] did for us that which we can never do for ourselves". There are a number of differing theories that come under the umbrella term "substitutionary atonement". The four best known are the Early Church Fathers' ransom theory; Gustaf Aulen's version of the ransom theory, called Christus Victor; Anselm of Canterbury's satisfaction theory; and the Reformed period's penal substitution theory. Care should be taken when one reads the language of substitution in, for example, patristic literature, not to assume