Deuteronomy 16:4
For seven days no leaven shall be seen with you in all your territory, and none of the meat which you sacrificed the evening of the first day shall remain overnight until morning.
Exodus 12:10
You shall let none of the meat remain until the morning, and anything that remains left over until morning, you shall burn completely in the fire.
Exodus 34:25
“You shall not offer the blood of My sacrifice with leavened bread, nor shall the sacrifice of the Feast of the Passover (Unleavened Bread) be left over until morning.
Exodus 13:7
Unleavened bread shall be eaten throughout the seven days; no leavened bread shall be seen with you, nor shall there be leaven within the borders of your territory.
Exodus 12:15
[In the celebration of the Passover in future years,] seven days you shall eat unleavened bread, but on the first day you shall remove the
Exodus 12:8
They shall eat the meat that same night, roasted in fire, and they shall eat it with unleavened bread and bitter herbs.