Galatians 5:9
A little leaven leavens the whole mixture.
1 Corinthians 15:33
Be not deceived: evil intercourses corrupt good habits.
Matthew 16:6-12
And Jesus said to them, Attend and keep from the leaven of the Pharisees and the Sadducees.
Matthew 23:33
Serpents, generations of vipers, how would ye flee from the judgment of hell?
Mark 8:15
And he enjoined them, saying, See ye, look away from the leaven of the Pharisees, and the leaven of Herod.
Luke 12:1
Upon which, myriads of the crowd having been gathered together, so as to tread upon one another, he began to speak to his disciples first, Keep yourselves from the leaven of the Pharisees, which is hypocrisy.
Luke 13:21
It is like leaven, which a woman having taken, hid in three measures of wheaten flour, until the whole was leavened.
1 Corinthians 5:6-7
Your boasting not good. Know ye not that a little leaven may leaven the whole mixture?
2 Timothy 2:17
And this word as a gangrene, will have an eating ulcer: of whom is Hymeneus and Philetus;