Exodus 13:6-9 Seven days you shall eat unleavened bread, and on the seventh day there shall be a feast to the LORD. Unleavened bread shall be eaten seven days. And no leavened bread shall be seen among you, nor shall leaven be seen among you in all your quarters. And you shall tell your son in that day, saying, ‘This is done because of what the LORD did for me when I came up from Egypt.’ It shall be as a sign to you on your hand and as a memorial between your eyes, that the LORD’s law may be in your mouth; for with a strong hand the LORD has brought you out of Egypt.
Leviticus 2:11-12 "No grain offering which you bring to the LORD shall be made with leaven, for you shall burn no leaven nor any honey in any offering to the LORD made by fire. As for the offering of the firstfruits, you shall offer them to the LORD, but they shall not be burned on the altar for a sweet aroma.
Luke 12:1 In the meantime, when an innumerable multitude of people had gathered together, so that they trampled one another, He began to say to His disciples first of all, "Beware of the leaven of the Pharisees, which is hypocrisy.
1 Corinthians 5:6-8 Your glorying is not good. Do you not know that a little leaven leavens the whole lump? Therefore purge out the old leaven, that you may be a new lump, since you truly are unleavened. For indeed Christ, our Passover, was sacrificed for us. Therefore let us keep the feast, not with old leaven, nor with the leaven of malice and wickedness, but with the unleavened bread of sincerity and truth.
Galatians 5:9 A little leaven leavens the whole lump.
Exodus 12:15 Seven days you shall eat unleavened bread. On the first day you shall remove leaven from your houses. For whoever eats leavened bread from the first day until the seventh day, that person shall be cut off from Israel.
Matthew 16:6 Then Jesus said to them, "Take heed and beware of the leaven of the Pharisees and the Sadducees."
Mark 8:15 Then He charged them, saying, 'Take heed, beware of the leaven of the Pharisees and the leaven of Herod.'
