Matthew 16:6
And Jesus said to them: Take heed and be ware of the leaven of the Pharisees and Sadducees.
Luke 12:1
In the mean time, when myriads of the people had come together, so that they trod one upon another, he began to say to his disciples first of all: Beware of the leaven of the Pharisees, which is hypocrisy.
Mark 8:15
And he charged them, saying: Take heed, and beware of the leaven of the Pharisees, and of the leaven of Herod.
1 Corinthians 5:6-8
Your boasting is not good; know you not that a little leaven leavens the whole mass?
Galatians 5:9
A little leaven leavens the whole mass.
Matthew 16:12
Then they understood that he did not bid them beware of the leaven of bread, but of the teaching of the Pharisees and of the Sadducees.
Luke 12:15
And he said to them: Take heed and beware of covetousness; for a man's life depends not on the abundance of his possessions.
2 Timothy 2:16-17
But shun profane and vain babblings; for they will make further advance to ungodliness,