Leviticus 16:31

And [this] shall be a statute for ever unto you: [that] in the seventh month, on the tenth [day] of the month, ye shall afflict your souls, and do no work at all, [whether it be] one of your own country, or a stranger that sojourneth among you:

For on that day shall [the priest] make an atonement for you, to cleanse you, [that] ye may be clean from all your sins before the LORD.

And the priest, whom he shall anoint, and whom he shall consecrate to minister in the priest's office in his father's stead, shall make the atonement, and shall put on the linen clothes, [even] the holy garments:

And he shall make an atonement for the holy sanctuary, and he shall make an atonement for the tabernacle of the congregation, and for the altar, and he shall make an atonement for the priests, and for all the people of the congregation.