Leviticus 4:34-35

Revised Standard Version

³⁴ Then the priest shall take some of the blood of the sin offering with his finger and put it on the horns of the altar of burnt offering, and pour out the rest of its blood at the base of the altar. ³⁵ And all its fat he shall remove as the fat of the lamb is removed from the sacrifice of peace offerings, and the priest shall burn it on the altar, upon the offerings by fire to the Lord; and the priest shall make atonement for him for the sin which he has committed, and he shall be forgiven.