Leviticus 23:25-29

²⁵You shall do no regular work. You shall offer an offering made by fire to the LORD.’”

²⁶The LORD spoke to Moses, saying,

²⁷“However on the tenth day of this seventh month is the day of atonement. It shall be a holy convocation to you. You shall afflict yourselves and you shall offer an offering made by fire to the LORD.

²⁸You shall do no kind of work in that same day, for it is a day of atonement, to make atonement for you before the LORD your God.

²⁹For whoever it is who shall not deny himself in that same day shall be cut off from his people.