Galatians 5:9
A little leaven, leaveneth, the whole lump.
1 Corinthians 15:33
Be not deceiving yourselves, - evil communications corrupt gentle manners: -
Matthew 16:6-12
And, Jesus, said unto them - Mind! and beware, of the leaven of the Pharisees and Sadducees.
Matthew 23:33
Serpents! broods of vipers! how should ye flee from the judgment of gehenna?
Mark 8:15
And he began charging them, saying - Mind! beware of the leaven of the Pharisees, and of the leaven of Herod!
Luke 12:1
Amongst which things, when the ten thousands of the multitude were gathered together, so that they were treading one upon another, he began to be saying, unto his disciples, first - Be keeping yourselves free from the leaven of the Pharisees, the which is, hypocrisy.
Luke 13:21
It is, like leaven, which a woman took and hid in three measures of flour, until, the whole, was leavened.
1 Corinthians 5:6-7
Unseemly, is your boast! Know ye not that, a little leaven, doth leaven, the whole of the lump?
2 Timothy 2:17
And, their discourse, as a gangrene, will eat its way; - of whom are Hymenaeus and Philetus,