Exodus 23:18
Thou shalt not sacrifice upon leaven: the blood of my sacrifice, and the fat of my festival shall not remain over till morning.
Exodus 34:25
Thou shalt not slaughter upon leaven, the blood of my sacrifice; and the sacrifice of the festival of the pass-over shall not be left to morning.
Leviticus 2:11
Every gift which ye shall bring near to Jehovah shall not be made leavened: for all leaven and all honey ye shall not burn from it a sacrifice to Jehovah.
Deuteronomy 16:4
And leaven shall not be seen to thee in all thy boundary seven days; and there shall not remain over night from the flesh which thou shalt sacrifice in the evening, in the first day to the morning.
Exodus 12:8
And they shall eat the flesh in that night roasted with fire and unleavened; upon bitter herbs shall they eat it
Exodus 12:10
Ye shall not leave from it till morning: and that remaining from it till morning, ye shall burn with fire.
Exodus 12:15
Seven days ye shall eat unleavened; wholly in the first day shall ye turn away leaven in your houses; for all eating leavened and that soul was destroyed from Israel from the first day even to the seventh day.
Leviticus 7:15
And the flesh of the sacrifice of praise of his peace, in the day of his offering shall be eaten; he shall not leave from it till morning.
Leviticus 7:12
If for praise he shall bring it, and he brought with the sacrifice of praise, unleavened cakes mixed with oil, and thin unleavened cakes anointed with oil, and fine flour dipped, cakes mixed in oil.