Leviticus 7:34-36

34For I have taken 1the breast of the wave offering and the thigh of the 2contribution from the sons of Israel from the sacrifices of their peace offerings, and have given them to Aaron the priest and to his sons as their due forever from the sons of Israel.

35‘This is 3that which is consecrated to Aaron and 4that 5which is consecrated to his sons from the offerings by fire to the Lord, in that day when he presented them to serve as priests to the Lord. 366These the Lord had commanded to be given them from the sons of Israel in the day that He 7anointed them. It is their due forever throughout their generations.’”