Leviticus 7:31-38

31And the priest shall burn the fat on the altar; and the breast shall be Aaron's and his sons'. 32And the right shoulder of the sacrifices of your peace-offerings shall ye give as a heave-offering unto the priest. 33He of the sons of Aaron that presenteth the blood of the peace-offerings, and the fat, shall have the right shoulder for [his] part. 34For the breast of the wave-offering, and the shoulder of the heave-offering, have I taken of the children of Israel from the sacrifices of their peace-offerings, and have given them unto Aaron the priest and unto his sons from the children of Israel by an everlasting statute. 35This is [the portion] of the anointing of Aaron and of the anointing of his sons, from Jehovah's offerings by fire, in the day [when] he presented them to serve Jehovah as priests, 36which Jehovah commanded to be given them by the children of Israel in the day that he anointed them: [it is] an everlasting statute, throughout their generations. 37This is the law of the burnt-offering, of the oblation, and of the sin-offering, and of the trespass-offering, and of the consecration-offering, and of the sacrifice of peace-offering, 38which Jehovah commanded Moses in mount Sinai, in the day that he commanded the children of Israel to present their offerings to Jehovah, in the wilderness of Sinai.