Leviticus 21:6
6 They shall be holy to their God and cnot profane the name of their God. For they offer the Lord’s food offerings, dthe bread of their God; therefore they shall be holy.
Leviticus 22:7–8
7 When the sun goes down he shall be clean, and afterward he may eat of the holy things, because kthey are his food. 8 lHe shall not eat what dies of itself or is torn by beasts, and so make himself unclean by it: I am the Lord.’