Exodus 34:25
You shall not slaughter the blood of My sacrifice with leaven. Neither shall the sacrifice of the feast of the Passover be left to the morning.
Exodus 23:18
You shall not offer the blood of My sacrifice with leaven, neither shall the fat of My sacrifice remain until the morning.
Exodus 12:10
And you shall not let any of it remain until the morning. And that which remains of it until the morning you shall burn with fire.
Exodus 12:8
And they shall eat the flesh in that night, roasted with fire, and unleavened bread. They shall eat it with bitter herbs.
Exodus 12:20
You shall eat nothing leavened. In all your dwelling-places you shall eat unleavened bread.
Exodus 29:34
And if any of the flesh of the consecrations, or of the bread, remains until the morning, then you shall burn the remainder with fire. It shall not be eaten, because it is holy.
Leviticus 7:15
And the flesh of the sacrifice of his peace offerings for thanksgiving shall be eaten the same day that it is offered. He shall not leave any of it until the morning.
Numbers 9:12
They shall leave none of it until the morning, nor break any bone of it. According to all the ordinances of the Passover they shall keep it.
Deuteronomy 16:3
You shall eat no leavened bread with it. Seven days you shall eat unleavened bread with it, the bread of affliction, for you came forth out of the land of Egypt in haste, so that you may remember the day that you came forth out of the land of Egypt all the days of your life.
1 Corinthians 5:7-8
Therefore purge out the old leaven so that you may be a new lump, as you are unleavened. For also Christ our Passover is sacrificed for us.