3From the peace offering he is to bring an offering made by fire to the LORD: the fat that covers the entrails, all the fat that is on them,
4both kidneys with the fat on them near the loins, and the lobe of the liver, which he is to remove with the kidneys.
5Then Aaron’s sons are to burn it on the altar atop the burnt offering that is on the burning wood, as an offering made by fire, a pleasing aroma to the LORD.
— Leviticus 3:3-5