Leviticus 7:34-37

³⁴For the uplifted breast and the shoulder of separation of the sacrifices of the Beni Israel I have given to Aharon the priest and to his sons by and everlasting statue form the sons of Israel.

³⁵This is the anointing of Aharon, and the anointing of his sons and of the Lord’s oblations, in the day that they that they present them to minister before the Lord,

³⁶which the Lord commanded to give them in the day that they consecrate them from the sons of Israel, an everlasting statute unto your generations.

³⁷This is the law of the burnt offering, of the mincha, nad of the sin offering, and of the trespass offering, and of the oblation of the sanctified victims