Leviticus 16:32-33

And the man on whose head the holy oil has been put, and who has been marked out to be a priest in his father's place, will do what is necessary to take away sin, and will put on the linen clothing, even the holy robes: And he will make the holy place and the Tent of meeting and the altar free from sin; he will take away sin from the priests and from all the people.