Leviticus 7:29-35

²⁹Speak to the children of Israel, saying, He that offereth the sacrifice of his peace-offerings to the LORD, shall bring his oblation to the LORD of the sacrifice of his peace-offerings.

³⁰His own hands shall bring the offerings of the LORD made by fire, the fat with the breast, that shall he bring, that the breast may be waved for a wave-offering before the LORD.

³¹And the priest shall burn the fat upon the altar: but the breast shall be Aaron's and his sons'.

³²And the right shoulder shall ye give to the priest for a heave-offering of the sacrifices of your peace-offerings.

³³He among the sons' of Aaron that offereth the blood of the peace-offerings, and the fat, shall have the right shoulder for his part.

³⁴For the wave-breast and the heave-shoulder have I taken of the children of Israel from off the sacrifices of their peace-offerings, and have given them to Aaron the priest, and to his sons, by a statute for ever, from among the children of Israel.

³⁵This is the portion of the anointing of Aaron, and of the anointing of his sons, out of the offerings of the LORD made by fire, in the day when he presented them to minister to the LORD in the priest's office;