Matthew 16:6
and Jesus said to them, 'Beware, and take heed of the leaven of the Pharisees and Sadducees;'
Luke 12:1
At which time the myriads of the multitude having been gathered together, so as to tread upon one another, he began to say unto his disciples, first, 'Take heed to yourselves of the leaven of the Pharisees, which is hypocrisy;
Mark 8:15
and he was charging them, saying, 'Take heed, beware of the leaven of the Pharisees, and of the leaven of Herod,'
1 Corinthians 5:6-8
Not good is your glorying; have ye not known that a little leaven the whole lump doth leaven?
Galatians 5:9
a little leaven the whole lump doth leaven;
Exodus 12:15-19
Seven days ye eat unleavened things; only -- in the first day ye cause leaven to cease out of your houses; for any one eating anything fermented from the first day till the seventh day, even that person hath been cut off from Israel.
Leviticus 2:11
No present which ye bring near to Jehovah is made fermented, for with any leaven or any honey ye perfume no fire-offering to Jehovah.
Matthew 16:12
Then they understood that he did not say to take heed of the leaven of the bread, but of the teaching, of the Pharisees and Sadducees.
Luke 12:15
And he said unto them, 'Observe, and beware of the covetousness, because not in the abundance of one's goods is his life.'
2 Timothy 2:16-17
and the profane vain talkings stand aloof from, for to more impiety they will advance,