Exodus 23:18
Thou shalt not offer the blood of my sacrifice with leavened bread; neither shall the fat of my lamb remain until the morning.
Exodus 34:25
Thou shalt not offer the blood of my sacrifice upon anything leavened; neither shall any of the sacrifice of the feast of the passover be left unto the morning.
Leviticus 2:11
No present which ye shall offer unto the LORD shall be with leaven; for of nothing leavened, nor any honey, shall ye make any offering incensed unto the LORD.
Deuteronomy 16:4
And there shall be no leavened bread seen in thee within all thy borders for seven days; neither shall any of the flesh which thou didst sacrifice the evening of the first day remain all night until the morning.
Exodus 12:8
And they shall eat the flesh in that night, roasted with fire, and unleavened bread; and with bitter herbs they shall eat it.
Exodus 12:10
And ye shall let nothing of it remain until the morning; and that which remains of it until the morning ye shall burn with fire.
Exodus 12:15
Seven days shall ye eat unleavened bread; even the first day ye shall put away leaven out of your houses, for whoever eats leavened bread from the first day until the seventh day, that soul shall be cut off from Israel.
Leviticus 7:15
And the flesh of his sacrifice of peace for thanksgiving shall be eaten the same day that it is offered; he shall not leave any of it until the morning.
Leviticus 7:12
If it is offered in thanksgiving, then he shall offer for the sacrifice of thanksgiving unleavened cakes mingled with oil and unleavened wafers anointed with oil and cakes mingled with oil, of fine flour, fried.