3 Do not eat it with bread made with yeast, but for seven days eat unleavened bread, the bread of affliction, because you left Egypt in haste—so that all the days of your life you may remember the time of your departure from Egypt.

Read Deuteronomy 16:3 Using Other Translations

Thou shalt eat no leavened bread with it; seven days shalt thou eat unleavened bread therewith, even the 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.
You shall eat no leavened bread with it. Seven days you shall eat it with unleavened bread, the bread of affliction--for you came out of the land of Egypt in haste--that all the days of your life you may remember the day when you came out of the land of Egypt.
Eat it with bread made without yeast. For seven days the bread you eat must be made without yeast, as when you escaped from Egypt in such a hurry. Eat this bread—the bread of suffering—so that as long as you live you will remember the day you departed from Egypt.