Matthew 16:12
Then understood they, that he spake about abstaining not from the leaven in the bread, but from the doctrine of the Pharisees and the Sadducees.
Luke 12:1
MEANTIME myriads of people collecting, so that they trod on one another, he began to speak to his disciples, Take heed principally of the leaven of the Pharisees, which is hypocrisy.
Acts 12:3
And seeing how agreeable this was to the Jews, he proceeded to seize Peter also. (Then were the days of unleavened bread.)
1 Corinthians 5:7-8
Purge out therefore the old leaven, that ye may be a new mass, as ye are unleavened. For our passover hath been sacrificed for us, even Christ.
Galatians 5:12
I wish that they who trouble you were cut off from you.