Matthew 16:6

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

Luke 12:1

In the mean time, when the many thousands of the multitude were gathered together, insomuch that they trod one upon another, he began to say unto his disciples first of all, Beware ye of the leaven of the Pharisees, which is hypocrisy.

Mark 8:15

And he charged them, saying, Take heed, beware of the leaven of the Pharisees and 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.

Exodus 12:15-19

Seven days shall ye eat unleavened bread; even the first day ye shall put away leaven out of your houses: for whosoever eateth leavened bread from the first day until the seventh day, that soul shall be cut off from Israel.

Leviticus 2:11

No meal-offering, which ye shall offer unto Jehovah, shall be made with leaven; for ye shall burn no leaven, nor any honey, as an offering made by fire unto Jehovah.

Matthew 16:12

Then understood they that he bade them not beware of the leaven of bread, but of the teaching of the Pharisees and Sadducees.

Luke 12:15

And he said unto them, Take heed, and keep yourselves from all covetousness: for a man's life consisteth not in the abundance of the things which he possesseth.

2 Timothy 2:16-17

But shun profane babblings: for they will proceed further in ungodliness,

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 understood they that he bade them not beware of the leaven of bread, but of the teaching of the Pharisees and Sadducees.
Exodus 12:15
Seven days shall ye eat unleavened bread; even the first day ye shall put away leaven out of your houses: for whosoever eateth leavened bread from the first day until the seventh day, that soul shall be cut off from Israel.
Leviticus 2:11
No meal-offering, which ye shall offer unto Jehovah, shall be made with leaven; for ye shall burn no leaven, nor any honey, as an offering made by fire unto Jehovah.
Mark 8:15
And he charged them, saying, Take heed, beware of the leaven of the Pharisees and the leaven of Herod.
Luke 12:1
In the mean time, when the many thousands of the multitude were gathered together, insomuch that they trod one upon another, he began to say unto his disciples first of all, Beware ye of the leaven of the Pharisees, which is hypocrisy.
1 Corinthians 5:6
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.
2 Timothy 2:16
But shun profane babblings: for they will proceed further in ungodliness,

General references

Exodus 13:7
Unleavened bread shall be eaten throughout the seven days; and there shall no leavened bread be seen with thee, neither shall there be leaven seen with thee, in all thy borders.
Proverbs 19:27
Cease, my son, to hear instruction Only to err from the words of knowledge.
John 4:33
The disciples therefore said one to another, Hath any man brought him aught to eat?

American Standard Version Public Domain