Deuteronomy 16:4
And there shall not be seen with thee leaven in any of thy bounds seven days, - neither shall there remain all night of the flesh which thou shalt sacrifice in the evening, on the first day, unto the morning.
Exodus 12:10
And ye shall let nothing thereof remain until morning, - but that which is left remaining until morning, in the fire shall ye consume.
Exodus 34:25
Thou shalt not slay, along with anything leavened, the blood of my sacrifice, - neither shall remain to the morning, the sacrifice of the festival of the passover.
Exodus 13:7
Unleavened cakes, shall be eaten for the seven days, - neither shall there be seen with thee anything leavened, nor shall there be seen with thee leaven, within any of thy bounds,
Exodus 12:15
Seven days, unleavened cakes, shall ye eat, surely, on the first day, shall ye put away leaven, out of your houses, - for whosoever eateth what is leavened, then shall that soul be cut off out of Israel, from the first day, unto the seventh day.
Exodus 12:8
Then shall they eat the flesh, in the same night, - roast with fire, and with unleavened cakes, with bitter herbs, shall they eat it.