Matthew 16:12
Then they understood that he did not tell them to beware of the leaven of bread, but of the teaching of the Pharisees and Sadducees.
Luke 12:1
AT that time, the multitude being assembled by ten thousands, so that they trod one on another, he said to his disciples, Beware, first, of the leaven of the Pharisees, which is hypocrisy;
Acts 12:3
And seeing that it pleased the Jews, he proceeded to apprehend Peter also,??nd it was during the days of unleavened bread,??4 and having seized he put him in prison, committing him to four companies of four soldiers each to guard him, wishing after the passover to bring him before the people.
1 Corinthians 5:7-8
Remove the old leaven, that you may be a new mass, as you are unleavened; for Christ our passover was also sacrificed for us.
Galatians 5:12
I would that they were cut off that disturb you.