Exodus 13:5-7

New Century Version

⁵ The Lord will lead you to the land of the Canaanites, Hittites, Amorites, Hivites, and Jebusites. This is the land he promised your ancestors he would give you, a fertile land. There you must celebrate this feast during the first month of every year. ⁶ For seven days you must eat bread made without yeast, and on the seventh day there will be a feast to honor the Lord. ⁷ So for seven days you must not eat any bread made with yeast. There must be no bread made with yeast anywhere in your land.