Leviticus 23
27 Ref The tenth day of this seventh month is the day for the taking away of sin; let it be a holy day of worship; you are to keep from pleasure, and give to the Lord an offering made by fire.
28 Ref And on that day you may do no sort of work, for it is a day of taking away sin, to make you clean before the Lord your God.
29 Ref For any person, whoever he may be, who takes his pleasure on that day will be cut off from his people.