Leviticus 7:33-35

New Catholic Bible

³³ The son of Aaron who offers the blood and the fat of the peace offering will receive the right shoulder as his portion. ³⁴ I have taken the breast of the wave offering and the right shoulder that is offered from the sacrifices of the peace offerings of the children of Israel, and I have given them to Aaron the priest and his sons. This is an eternal statute for the children of Israel.

³⁵ “ ‘This is the portion consecrated to Aaron and the portion consecrated to his sons from the offerings made by fire to the Lord. They will receive them on the day that they present them ministering unto the Lord.