Leviticus 4:8-19, 26, 31

He shall take from it all the fat of the bull as the sin offering. The fat that covers the entrails and all the fat which 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, as it was taken from the bull of the sacrifice of the peace offering; and the priest shall burn them on the altar of the burnt offering. But the bull’s hide and all its flesh, with its head and legs, its entrails and offal— the whole bull he shall carry outside the camp to a clean place, where the ashes are poured out, and burn it on wood with fire; where the ashes are poured out it shall be burned. ‘Now if the whole congregation of Israel sins unintentionally, and the thing is hidden from the eyes of the assembly, and they have done something against any of the commandments of the LORD in anything which should not be done, and are guilty; when the sin which they have committed becomes known, then the assembly shall offer a young bull for the sin, and bring it before the tabernacle of meeting. And the elders of the congregation shall lay their hands on the head of the bull before the LORD. Then the bull shall be killed before the LORD. The anointed priest shall bring some of the bull’s blood to the tabernacle of meeting. Then the priest shall dip his finger in the blood and sprinkle it seven times before the LORD, in front of the veil. And he shall put some of the blood on the horns of the altar which is before the LORD, which is in the tabernacle of meeting; and he shall pour the remaining blood at the base of the altar of burnt offering, which is at the door of the tabernacle of meeting. He shall take all the fat from it and burn it on the altar.

And he shall burn all its fat on the altar, like the fat of the sacrifice of the peace offering. So the priest shall make atonement for him concerning his sin, and it shall be forgiven him.

He shall remove all its fat, as fat is removed from the sacrifice of the peace offering; and the priest shall burn it on the altar for a sweet aroma to the LORD. So the priest shall make atonement for him, and it shall be forgiven him.