Leviticus 3:14-16

14Then he shall offer from it his offering, as an offering made by fire to the Lord. The fat that covers the entrails and all the fat that is on the entrails,

15the two kidneys and the fat that is on them by the flanks, and the fatty lobe attached to the liver above the kidneys, he shall remove;

16and the priest shall burn them on the altar as food, an offering made by fire for a sweet aroma; all the fat is the Lord’s.