Matthew Poole and continuators on Leviticus 8:31

31 And Moses said unto Aaron, and to his sons, Boil the flesh at the door of the tabernacle of the congregation: and there eat it with the bread that is in the basket of consecrations, as I commanded, saying, Aaron and his sons shall eat it.

That which was left of the ram, and particularly the breast, which was said to be Moses his part, ver. 29. and by him was given to Aaron, that he and his sons might eat of it in token that they and onely they should have the right to do so for the future.

Marginal references: Exod. 29. 32.