Exodus 12:20

20You shall eat nothing leavened; in all your dwelling places you shall eat unleavened bread.”

Leviticus 2:11

11“No grain offering that you bring to the Lord shall be made with aleaven, for you shall burn no leaven nor any honey as a food offering to the Lord.

1 Corinthians 5:6-8

6 bYour boasting is not good. Do you not know that ca little leaven leavens the whole lump? 7Cleanse out the old leaven that you may be a new lump, as you really are unleavened. For Christ, our Passover lamb, has been sacrificed. 8Let us therefore celebrate the festival, dnot with the old leaven, ethe leaven of malice and evil, but with the unleavened bread of sincerity and truth.

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