Leviticus 3:2-4

Revised Standard Version

² And he shall lay his hand upon the head of his offering and kill it at the door of the tent of meeting; and Aaron’s sons the priests shall throw the blood against the altar round about. ³ And from the sacrifice of the peace offering, as an offering by fire to the Lord, he shall offer the fat covering the entrails and all the fat that is on the entrails, ⁴ and the two kidneys with the fat that is on them at the loins, and the appendage of the liver which he shall take away with the kidneys.