Leviticus 16:26-30

²⁶But he who led away the goat unto Azazel shall wash his clothes, and bathe his flesh in water, and afterwards go into the camp.

²⁷And the bullock of the sin offering whose blood was carried in to make atonement in the Holy Place, he shall take forth out of the camp, and they shall burn their skins and their flesh and their food with fire.

²⁸And he who burned them must wash his clothes, and bathe his flesh with water, and may then enter into the camp.

²⁹And this shall be to you for an everlasting statute: in the seventh month, on the tenth day of the month, you shall afflict (humble) your souls, and do no work, whether the native-born or the stranger that dwelleth among you.

³⁰For on that day he shall make atonement for you, to cleanse you from all your sins, that you may be cleansed from all your sins before the Lord.