TSK · Leviticus 23:8

Seven days thou shalt eat unleavened bread, and in the seventh day [shall be] a feast to the LORD.

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

Also in the day of the firstfruits, when ye bring a new meat offering unto the LORD, after your weeks [be out], ye shall have an holy convocation; ye shall do no servile work: