Leviticus 16:17-19

New Catholic Bible

¹⁷ No one is to be inside of the tent of meeting when he enters to make atonement in the sanctuary, until the time that he exits, so that he can make atonement for himself and for his household and for all of the assembly of Israel. ¹⁸ He shall go to the altar that is before the Lord and he shall make atonement for it. He shall take some of the blood of the young bull and some of the blood of the goat and he shall put it on the horns around the altar. ¹⁹ He shall sprinkle the blood upon it with his finger seven times, cleansing it and purifying it from the uncleanness of the children of Israel.