Leviticus 23:3-11

³Six days shall work be done: but on the seventh day is a sabbath of solemn rest, a holy convocation; ye shall do no manner of work: it is a sabbath unto Jehovah in all your dwellings.

⁴These are the set feasts of Jehovah, even holy convocations, which ye shall proclaim in their appointed season.

⁵In the first month, on the fourteenth day of the month at even, is Jehovah’s passover.

⁶And on the fifteenth day of the same month is the feast of unleavened bread unto Jehovah: seven days ye shall eat unleavened bread.

⁷In the first day ye shall have a holy convocation: ye shall do no servile work.

⁸But ye shall offer an offering made by fire unto Jehovah seven days: in the seventh day is a holy convocation; ye shall do no servile work.

⁹And Jehovah spake unto Moses, saying,

¹⁰Speak unto the children of Israel, and say unto them, When ye are come into the land which I give unto you, and shall reap the harvest thereof, then ye shall bring the sheaf of the first-fruits of your harvest unto the priest:

¹¹and he shall wave the sheaf before Jehovah, to be accepted for you: on the morrow after the sabbath the priest shall wave it.