And ye shall do no work in that same day: for it is a day of atonement, to make an atonement for you before the LORD your God.
Instructions regarding observance of the Day of Atonement within the festival calendar given to Israel.
King James Version (public domain)
Traditionally attributed to Moses · c. 13th century BC · The Pentateuch — Genesis, Exodus, Leviticus, Numbers, and Deuteronomy — is traditionally attributed to him
26And the LORD spake unto Moses, saying,
27Also on the tenth day of this seventh month there shall be a day of atonement: it shall be an holy convocation unto you; and ye shall afflict your souls, and offer an offering made by fire unto the LORD.
28And ye shall do no work in that same day: for it is a day of atonement, to make an atonement for you before the LORD your God.
29For whatsoever soul it be that shall not be afflicted in that same day, he shall be cut off from among his people.
30And whatsoever soul it be that doeth any work in that same day, the same soul will I destroy from among his people.