Leviticus 9:18-20

Amplified Bible

¹⁸ He also killed the bull and the ram, the sacrifice of peace offerings which was for the people; and Aaron’s sons handed the blood to him and he sprinkled it around on the altar, ¹⁹ As for the portions of fat from the bull and from the ram—the fat tail, and the fat covering the internal organs, and the kidneys, and the lobe of the liver— ²⁰ they now put the portions of fat on the breasts; and Aaron offered the fat up in smoke on the altar.