Leviticus 22:7

3 Tell them that for the generations to come, if any of their descendants in a state of uncleanness approaches the sacred offerings that the Israelites consecrate to the LORD, that person must be cut off from My presence. I am the LORD.

4 If a descendant of Aaron has a skin disease 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,

5 or whoever touches a crawling creature or a person that makes him unclean, whatever the uncleanness may be—

6 the 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.

7 When the sun has set, he will become clean, and then he may eat from the sacred offerings, for they are his food.

8 He must not eat anything found dead or torn by wild animals, which would make him unclean. I am the LORD.

9 The priests must keep My charge, lest they bear the guilt and die because they profane it. I am the LORD who sanctifies them.

10 No one outside a priest’s family may eat the sacred offering, nor may the guest of a priest or his hired hand eat it.

11 But if a priest buys a slave with his own money, or if a slave is born in his household, that slave may eat his food.

Read all of Leviticus 22