Deuteronomy 16:4
And leaven shall not be seen with you in any of your territory for seven days, and none of the meat that you will slaughter on the evening on the first day shall remain 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 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 13:7
Unleavened bread will be eaten the seven days; [food with] yeast will not be seen for you; and yeast will not be seen for you in all your territory.
Exodus 12:15
You will eat unleavened bread for seven days. Surely on the first day you shall remove yeast from your houses, because anyone [who] eats [food with] yeast from the first day until the seventh day--that person will be cut off from Israel.
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}.