Leviticus 23:24-32

²⁴Speak unto the children of Israel, saying, In the seventh month, on the first day of the month, shall ye have a rest, a day of memorial of sounding the cornet, a holy convocation.

²⁵No servile work shall ye do: and ye shall offer an offering made by fire unto the Lord.

²⁶And the Lord spoke unto Moses, saying,

²⁷But on the tenth day of this seventh month is the day of atonement, a holy convocation shall it be unto you, and ye shall fast; and ye shall offer an offering made by fire unto the Lord.

²⁸And no manner of work shall ye do on this same day; for it is a day of atonement, to make an atonement for you before the Lord your God.

²⁹For whatsoever person it be that fasteth not on this same day, shall be cut off from among his people.

³⁰And if there be any person that doth any work on this same day, then will I destroy the same person from among his people.

³¹No manner of work shall ye do: it shall he a statute for ever throughout your generations, in all your dwellings.

³²A sabbath of rest it shall be unto you, and ye shall fast: on the ninth day of the month at evening shall ye begin, from evening unto evening shall ye celebrate your sabbath.