Leviticus 7:4-6

Amplified Bible

⁴ and the two kidneys with the fat that is on them at the loins, and the lobe of the liver, which he shall remove with the kidneys. ⁵ The priest shall offer them up in smoke on the altar as an offering by fire to the Lord; it is a guilt offering. ⁶ Every male among the priests may eat it; it shall be eaten in a holy place; it is most holy.