Matthew 16:6

and Jesus said to them, have a care of the leaven of the Pharisees, and of the Sadducees.

Luke 12:1

In the mean time thousands of people being gather'd about him, so as to trample upon one another, he first address'd himself thus to his disciples, beware of the corrupt doctrine of the Pharisees, which is hypocrisy.

Mark 8:15

as he was then directing them diligently to beware of the leaven of the Pharisees, and of the leaven of Herod,

1 Corinthians 5:6-8

Your levity is very indecent: don't you know that a little leaven infects the whole mass?

Galatians 5:9

a little leaven affects the whole mass.

Matthew 16:12

then they perceived, he did not caution them against the leaven of bread, but against the Pharisaick and Sadducean doctrine.

Luke 12:15

then he said to them, take care to be clear of all avarice: for the enjoyment of life does not depend upon the having large possessions.

2 Timothy 2:16-17

discountenance such as hold vain irreligious discourse; for they will grow bold in impiety,

Treasury of Scripture Knowledge

Summary

Then Jesus said unto them, Take heed and beware of the leaven of the Pharisees and of the Sadducees.

General references

Bible References

The leaven

Matthew 16:12
then they perceived, he did not caution them against the leaven of bread, but against the Pharisaick and Sadducean doctrine.
Mark 8:15
as he was then directing them diligently to beware of the leaven of the Pharisees, and of the leaven of Herod,
Luke 12:1
In the mean time thousands of people being gather'd about him, so as to trample upon one another, he first address'd himself thus to his disciples, beware of the corrupt doctrine of the Pharisees, which is hypocrisy.
1 Corinthians 5:6
Your levity is very indecent: don't you know that a little leaven infects the whole mass?
Galatians 5:9
a little leaven affects the whole mass.
2 Timothy 2:16
discountenance such as hold vain irreligious discourse; for they will grow bold in impiety,

General references

John 4:33
upon which the disciples said one to another, hath any man brought him any thing to eat?