Leviticus [Pertaining to Levites] 7:4-6

⁴and the two kidneys, and the fat that is on them, which is by the loins, and the cover on the liver, with the kidneys, shall he take away;

⁵and the priest shall burn them on the altar for an offering made by fire to Adonai : it is a trespass offering.

⁶Every male among the priests may eat of it. It shall be eaten in a holy place. It is most holy.