Exodus 13:7
Bread without leaven shall be eaten the seven days; and nothing leavened shall be seen with thee, neither shall there be any leaven in all thy borders.
Exodus 12:19
For seven days there shall be no leaven found in your houses; for whoever eats that which is leavened, that soul shall be cut off from the congregation of Israel, whether he is a stranger or born in the land.
Matthew 16:6
Then Jesus said unto them, Take heed and keep yourselves from the leaven of the Pharisees and of the Sadducees.
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