Leviticus 16 18
Then he shall go out to the altar that is before the Lord and make atonement for it; he shall take some of the blood from the bull and some of the blood from the goat, and put it on the horns of the altar on all sides.
Then he shall go out to the altar that is before the Lord and make atonement for it; he shall take some of the blood from the bull and some of the blood from the goat, and put it on the horns of the altar on all sides.