Leviticus 7:34-38

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

‘This is the allotment to Aaron and the allotment to his sons from the offerings by fire to the Lord, on that day when he presented them to serve as priests to the Lord.

These the Lord had commanded to be given them from the sons of Israel on the day that He anointed them. It is their allotted portion forever throughout their generations.’ ”

This is the law of the burnt offering, the grain offering, the sin offering and the guilt offering, and the ordination offering and the sacrifice of peace offerings,

which the Lord commanded Moses on Mount Sinai on the day that He commanded the sons of Israel to present their offerings to the Lord in the wilderness of Sinai.