Ezekiel 44:22-31

22 No priest may marry a divorced woman; he is to marry only an Israelite virgin or the widow of another priest. 1
23 "The priests are to teach my people the difference between what is holy and what is not, and between what is ritually clean and what is not. 2
24 When a legal dispute arises, the priests are to decide the case according to my laws. They are to keep the religious festivals according to my rules and regulations, and they are to keep the Sabbaths holy.
25 "A priest is not to become ritually unclean by touching a corpse, unless it is one of his parents, one of his children or a brother or an unmarried sister. 3
26 After he has become clean again, he must wait seven days
27 and then go into the inner courtyard of the Temple and offer a sacrifice for his purification, so that he can serve in the Temple again. I, the Sovereign Lord, have spoken.
28 "The priests have the priesthood as their share of what I have given Israel to be handed down from one generation to another. They are not to hold property in Israel; I am all they need. 4
29 The grain offerings, the sin offerings, and the repayment offerings will be the priests' food, and they are to receive everything in Israel that is set apart for me. 5
30 The priests are to have the best of all the first harvest and of everything else that is offered to me. Each time the people bake bread, they are to give the priests the first loaf as an offering, and my blessing will rest on their homes.
31 The priests must not eat any bird or animal that dies a natural death or is killed by another animal." 6