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.
Matthew 26:26
Now as they were eating, Jesus took bread, and blessed, and broke it, and gave it to the disciples and said, "Take, eat; this is my body."
John 6:52-57
Then the Jews began to argue among themselves, saying, "How can this man give us his flesh to eat?"
1 Corinthians 5:6-8
Your boasting is not good. Do you not know that a little leaven leavens the whole lump of dough?
Galatians 5:9
A little leaven leavens the whole lump of dough.
1 Thessalonians 1:6
You became imitators of us and of the Lord, for you received the word in much affliction, with the joy of the Holy Spirit;