Leviticus 7:3-5

Amplified Bible, Classic Edition

³ And he shall offer all its fat, the fat tail and the fat that covers the entrails,

⁴ And the two kidneys and the fat that is on them at the loins, and the lobe or appendage of the liver, which he shall take away with the kidneys.

⁵ And the priest shall burn them on the altar for an offering made by fire to the Lord; it is a guilt or trespass offering.