Leviticus 23:3, 32
Leviticus 23:3 NASB1995
‘For six days work may be done, but on the seventh day there is a sabbath of complete rest, a holy convocation. You shall not do any work; it is a sabbath to the LORD in all your dwellings.
Leviticus 23:32 NASB1995
It is to be a sabbath of complete rest to you, and you shall humble your souls; on the ninth of the month at evening, from evening until evening you shall keep your sabbath.”