Leviticus 16:29-31

NHEB(i) 29 "It shall be a statute to you forever: in the seventh month, on the tenth day of the month, you shall humble your souls, and shall do no manner of work, both the native and the foreigner who sojourns in your midst: 30 for on this day shall atonement be made for you, to cleanse you; from all your sins you shall be clean before the LORD. 31 It is a Sabbath of solemn rest to you, and you shall afflict your souls; it is a statute forever.