Deuteronomy 16:3-4

English Standard Version

³ You shall eat no leavened bread with it. ^(A)Seven days you shall eat it with unleavened bread, the bread of affliction—for you came out of the land of Egypt ^(B)in haste—that all the days of your life you may remember the day when you came out of the land of Egypt. ^4 (C)No leaven shall be seen with you in all your territory for seven days, ^(D)nor shall any of the flesh that you sacrifice on the evening of the first day remain all night until morning.