Leviticus 7:34-36

34I have taken from the sons of Israel the breast of the wave offering and the thigh of the contribution of their peace offerings, and I have given them to Aaron the priest and his sons as a permanent portion from the sons of Israel.’”

35This is the portion of the food offerings to the LORD for Aaron and his sons since the day they were presented to serve the LORD as priests. 36On the day they were anointed, the LORD commanded that this be given them by the sons of Israel. It is a permanent portion for the generations to come.