Êxodo 12:16

16 On the first day hold a sacred assembly, and another one on the seventh day. Do no work at all on these days, except to prepare food for everyone to eat; that is all you may do.

16 And on the first day there is to be a holy meeting and on the seventh day a holy meeting; no sort of work may be done on those days but only to make ready what is necessary for everyone's food.