Exodus 13:7
Unleavened bread shall be eaten the seven days; and leavened bread shall not be seen with thee, neither shall there be leaven seen with thee in all thy borders.
Exodus 12:19
Seven days shall there be no leaven found in your houses; for whoever eateth what is leavened that soul shall be cut off from the assembly of Israel, whether he be a sojourner, or born in the land.
Matthew 16:6
And Jesus said to them, See and beware of the leaven of the Pharisees and Sadducees.
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