Leviticus 16:28

24 He is to bathe himself with water in a holy place and put on his own clothes. Then he must go out and sacrifice his burnt offering and the people’s burnt offering to make atonement for himself and for the people.

25 He is also to burn the fat of the sin offering on the altar.

26 The man who released the goat as the scapegoat must wash his clothes and bathe himself with water; afterward he may reenter the camp.

27 The bull for the sin offering and the goat for the sin offering, whose blood was brought into the Most Holy Place to make atonement, must be taken outside the camp; and their hides, flesh, and dung must be burned up.

28 The one who burns them must wash his clothes and bathe himself with water, and afterward he may reenter the camp.

29 This is to be a permanent statute for you: On the tenth day of the seventh month, you shall humble yourselves and not do any work—whether the native or the foreigner who resides among you—

30 because on this day atonement will be made for you to cleanse you, and you will be clean from all your sins before the LORD.

31 It is a Sabbath of complete rest for you, that you may humble yourselves; it is a permanent statute.

32 The priest who is anointed and ordained to succeed his father as high priest shall make atonement. He will put on the sacred linen garments

Read all of Leviticus 16