Luke 12:1

In the mean time, when myriads of the people had come together, so that they trod one upon another, he began to say to his disciples first of all: Beware of the leaven of the Pharisees, which is hypocrisy.

James 3:17

But the wisdom that is from above is first pure, then peaceable, gentle, easy to be entreated, full of mercy and good fruits, without partiality, and without hypocrisy.

1 Corinthians 5:7-8

Purge out the old leaven, that you may be a new mass, as you are without leaven; for Christ, our passover, has been sacrificed for us.

Matthew 16:6-12

And Jesus said to them: Take heed and be ware of the leaven of the Pharisees and Sadducees.

Mark 8:15-21

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

Luke 5:1

And it came to pass while the multitude was pressing on him to hear the word of God, and he was standing by the lake of Gennesaret,

Luke 5:15

But his fame went abroad the more; and many multitudes came together to hear, and to be cured by him of their infirmities.

Luke 6:17

And he came down with them, and stood in a plain; and with him stood a multitude of his disciples, and a great number of people from all Judea and Jerusalem, and the sea-coast of Tyre and Sidon, who had come to hear him, and to be healed of their diseases,

Luke 11:44

Alas for you, scribes and Pharisees, hypocrites! for you are like graves that are not seen; and men that walk over them know it not.

Luke 12:56

Hypocrites, you know how to judge of the face of the earth, and of the heavens; but how is it that you do not judge of this time?

Acts 21:20

And when they heard it, they glorified the Lord, and said to him: You see, brother, how many myriads of the Jews there are that believe, and they are all zealous for the law.

1 Corinthians 15:3

For I delivered to you among the first things, that which I also received: That Christ died for our sins, according to the scriptures;

1 Peter 2:1

Therefore, laying aside all malice, and all guile, and hypocrisies, and envyings, and all evil speakings,

Treasury of Scripture Knowledge

Summary

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

Bible References

First

1 Corinthians 15:3
For I delivered to you among the first things, that which I also received: That Christ died for our sins, according to the scriptures;
James 3:17
But the wisdom that is from above is first pure, then peaceable, gentle, easy to be entreated, full of mercy and good fruits, without partiality, and without hypocrisy.

Which

Luke 12:56
Hypocrites, you know how to judge of the face of the earth, and of the heavens; but how is it that you do not judge of this time?
Luke 11:44
Alas for you, scribes and Pharisees, hypocrites! for you are like graves that are not seen; and men that walk over them know it not.
James 3:17
But the wisdom that is from above is first pure, then peaceable, gentle, easy to be entreated, full of mercy and good fruits, without partiality, and without hypocrisy.
1 Peter 2:1
Therefore, laying aside all malice, and all guile, and hypocrisies, and envyings, and all evil speakings,

General references

Matthew 23:1
Then Jesus spoke to the multitudes, and to his disciples,
Luke 14:25
And many multitudes were journeying with him; and he turned and said to them:
Galatians 5:9
A little leaven leavens the whole mass.