Exodus 12:16-17

MSTC(i) 16 "The first day shall be a holy feast unto you, and the seventh also. There shall be no manner of work done in them, save about that only which every man must eat: that only may ye do. 17 And see that ye keep you to unleavened bread. For upon that same day I will bring your armies out of the land of Egypt, therefore ye shall observe this day and all your children after you, that it be a custom forever.