Deu Deuteronomy, chapter Book of Deuteronomy, chapter 16
Thou shalt eat no leavened bread with it; seven days shalt thou eat unleavened bread therewith, even the bread of affliction; for in haste didst thou come forth out of the land of Egypt; that thou mayest remember the day when thou camest forth out of the land of Egypt all the days of thy life. Exo 12:14; Exo 12:39