Leviticus 3:3-5, 9-11, 14-15

Then he shall offer from the sacrifice of the peace offering an offering made by fire to the LORD. The fat that covers the entrails and all the fat that is on the entrails, the 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; and Aaron’s sons shall burn it on the altar upon the burnt sacrifice, which is on the wood that is on the fire, as an offering made by fire, a sweet aroma to the LORD.

‘Then he shall offer from the sacrifice of the peace offering, as an offering made by fire to the LORD, its fat and the whole fat tail which he shall remove close to the backbone. And the fat that covers the entrails and all the fat that is on the entrails, the 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; and the priest shall burn them on the altar as food, an offering made by fire to the LORD.

Then 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, the 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