Matthew 16:6
And Jesus said to them, Take heed and beware of the leaven of the Pharisees and Saducees.
Luke 12:1
In the mean time, an innumerable multitude being gathered together, so that they trod one upon another, he said to his disciples first, Beware of the leaven of the Pharisees, which is hypocrisy.
Mark 8:15
And he charged them, Take heed, beware of the leaven of the Pharisees and of the leaven of Herod.
1 Corinthians 5:6-8
Your glorying is not good: know ye not, that a little leaven leaveneth the whole lump?
Galatians 5:9
A little leaven leaveneth the whole lump.
Matthew 16:12
Then they understood, that he did not bid them beware of the leaven of bread, but of the doctrine of the Pharisees and Saducees.
Luke 12:15
And he said to them, Take heed and beware of covetousness: for a man's life consisteth not in the abundance of the things which he possesseth.
2 Timothy 2:16-17
But avoid profane empty babblings; for they will increase to more ungodliness.