Lev Leviticus, chapter Book of Leviticus, chapter 22
If a descendant of Aaron has a skin disease22:4 Forms of the Hebrew tzaraath, traditionally translated as leprosy, were used for various skin diseases; see Leviticus 13. or a discharge, he may not eat the sacred offerings until he is clean. Whoever touches anything defiled by a corpse or by a man who has an emission of semen, Lev 15:2; Lev 15:16; 2Ch 30:18or whoever touches a crawling creature or a person that makes him unclean, whatever the uncleanness may be — Lev 11:29the man who touches any of these will remain unclean until evening. He must not eat from the sacred offerings unless he has bathed himself with water.Lev 11:24; 2Pe 3:14
When the sun has set, he will become clean, and then he may eat from the sacred offerings, for they are his food.