Leviticus 3:9-11

9He will then present part of the fellowship sacrifice as a food offering to the Lord consisting of its fat and the entire fat tail, which he is to remove close to the backbone. He will also remove the fat surrounding the entrails, all the fat on the entrails,

10the two kidneys with the fat on them at the loins, and the fatty lobe of the liver above the kidneys.

11Then the priest will burn the food on the altar, as a food offering to the Lord.