Leviticus 23:3-6

³Six days ye shall do work, the seventh day shall be called holy, for it is the rest of the sabbath; ye shall not do any work therein; it is the sabbath of the Lord in all your dwelling places.

⁴These be the holy fairs, either solemnities, of the Lord, which ye ought to hallow in their times.

⁵In the first month, in the fourteenth day of the month, at eventide, is the pask of the Lord;

⁶and in the fifteenth day of this month is the solemnity of therf loaves of the Lord; seven days ye shall eat therf loaves;