Leviticus 7:2-5

2The priest must kill an animal at the north side of the altar. He must throw the blood onto the sides of the altar.

3The priest will bring all the fat from the tail and the inside parts to the altar.

4He will bring the kidneys and the best piece of the liver.

5Then he will burn the pieces on the altar. They are a gift to the Lord to make a person clean from sin.