Leviticus 16:32-34

32And the priest, who shall be anointed and who shall be consecrated to be priest in his father’s stead, shall make the atonement, and shall put on the linen garments, even the holy garments: 33and he shall make atonement for the holy sanctuary; and he shall make atonement for the tent of meeting and for the altar; and he shall make atonement for the priests and for all the people of the assembly. 34And this shall be an everlasting statute unto you, to make atonement for the children of Israel because of all their sins once in the year. And he did as Jehovah commanded Moses.