Leviticus 7:3-7

³And he shall offer all the fat from it; and the loins, and all the fat that covers the inwards, and all the fat that is upon the inwards,

⁴and the two kidneys, and the fat that is upon them, that which is upon the thighs, and the caul upon the liver with the kidneys, he shall take them away.

⁵And the priest shall offer them on the altar a burnt-offering to the Lord; it is for trespass.

⁶Every male of the priests shall eat them, in the holy place they shall eat them: they are most holy.

⁷As the sin-offering, so also is the trespass-offering. There is one law of them; the priest who shall make atonement with it, his it shall be.