'Eat Unleavened Bread' in the Bible

Thou shalt eat no leavened bread along with it; seven days shalt thou eat unleavened bread with it, bread of affliction; for thou camest forth out of the land of Egypt in haste, that thou mayest remember the day when thou camest forth out of the land of Egypt, all the days of thy life.

Six days thou shalt eat unleavened bread, and on the seventh day is a solemn assembly to Jehovah thy God; thou shalt do no work.