there shall
Exodus 12:15
Seven days ye eat unleavened things; only -- in the first day ye cause leaven to cease out of your houses; for any one eating anything fermented from the first day till the seventh day, even that person hath been cut off from Israel.
Exodus 13:7
unleavened things are eaten the seven days, and any thing fermented is not seen with thee; yea, leaven is not seen with thee in all thy border.
Exodus 34:25
'Thou dost not slaughter with a fermented thing the blood of My sacrifice; and the sacrifice of the feast of the passover doth not remain till morning:
neither
Exodus 12:10
and ye do not leave of it till morning, and that which is remaining of it till morning with fire ye do burn.