Exodus 34:25
"You will not slaughter the blood of my sacrifice on [food with] yeast, and the sacrifice of the Feast of the Passover will not stay overnight to the morning.
Exodus 23:18
" 'You will not sacrifice the blood of my sacrifice together with [food with] yeast, and you will not leave the fat of my feast overnight until morning.
Exodus 12:10
And you must not leave any of it until morning; anything left from it until morning you must burn in the fire.
Exodus 12:8
And they will eat the meat on this night; they will eat it fire-roasted and [with] unleavened bread on {bitter herbs}.
Exodus 12:20
You will eat no [food with] yeast; in all of your dwellings you will eat unleavened bread."
Exodus 29:34
If any remains until morning from the ordination meat or from the bread, you will burn the remainder in fire; it will not be eaten, because it [is] a holy object.
Leviticus 7:15
And the meat of the sacrifice of his thanksgiving fellowship offerings must be eaten on the day of his offering; he must not leave it until morning.
Numbers 9:12
They will leave none of it until morning, and they will not break a bone in it; they will observe it according to every decree of the Passover.
Deuteronomy 16:3
You shall not eat {with it} anything leavened; seven days you shall eat {with it} unleavened bread of affliction, because in haste you went out from the land of Egypt, so that you will remember the day of your going out from the land of Egypt all the days of your life.
1 Corinthians 5:7-8
Clean out the old leaven in order that you may be a new batch of dough, just as you are unleavened. For Christ our Passover has been sacrificed.