TSK · Numbers 28:26

And the feast of harvest, the firstfruits of thy labours, which thou hast sown in the field: and the feast of ingathering, [which is] in the end of the year, when thou hast gathered in thy labours out of the field.

But ye shall offer an offering made by fire unto the LORD seven days: in the seventh day [is] an holy convocation: ye shall do no servile work [therein].

¶ And ye shall count unto you from the morrow after the sabbath, from the day that ye brought the sheaf of the wave offering; seven sabbaths shall be complete:

In the first day [shall be] an holy convocation; ye shall do no manner of servile work [therein]:

And thou shalt keep the feast of weeks unto the LORD thy God with a tribute of a freewill offering of thine hand, which thou shalt give [unto the LORD thy God], according as the LORD thy God hath blessed thee:

¶ But now is Christ risen from the dead, [and] become the firstfruits of them that slept.