Leviticus 16:29-34 New King James Version (NKJV)
29 “This shall be a statute forever for you: In the seventh month, on the tenth day of the month, you shall [a]afflict your souls, and do no work at all, whether a native of your own country or a stranger who [b]dwells among you. 30 For on that day the priest shall make [c]atonement for you, to cleanse you, that you may be clean from all your sins before the Lord. 31 It is a sabbath of solemn rest for you, and you shall afflict your souls. It is a statute forever. 32 And the priest, who is anointed and consecrated to minister as priest in his father’s place, shall make atonement, and put on the linen clothes, the holy garments; 33 then he shall make [d]atonement for [e]the Holy Sanctuary, and he shall make atonement for the tabernacle of meeting and for the altar, and he shall make atonement for the priests and for all the people of the assembly. 34 This shall be an everlasting statute for you, to make atonement for the children of Israel, for all their sins, once a year.” And he did as the Lord commanded Moses.
Leviticus 16:29-34 New International Version (NIV)
29 “This is to be a lasting ordinance for you: On the tenth day of the seventh month you must deny yourselves[a] and not do any work—whether native-born or a foreigner residing among you— 30 because on this day atonement will be made for you, to cleanse you. Then, before the Lord, you will be clean from all your sins. 31 It is a day of sabbath rest, and you must deny yourselves; it is a lasting ordinance. 32 The priest who is anointed and ordained to succeed his father as high priest is to make atonement. He is to put on the sacred linen garments 33 and make atonement for the Most Holy Place, for the tent of meeting and the altar, and for the priests and all the members of the community.
34 “This is to be a lasting ordinance for you: Atonement is to be made once a year for all the sins of the Israelites.”
And it was done, as the Lord commanded Moses.