Matthew 16:12
Then they perceived that He had not warned them against bread-yeast, but against the teaching of the Pharisees and Sadducees.
Matthew 26:26
During the meal Jesus took a Passover biscuit, blessed it and broke it. He then gave it to the disciples, saying, "Take this and eat it: it is my body."
John 6:52-57
This led to an angry debate among the Jews. "How can this man," they argued, "give us his flesh to eat?"
1 Corinthians 5:6-8
It is no good thing--this which you make the ground of your boasting. Do you not know that a little yeast corrupts the whole of the dough?
Galatians 5:9
A little yeast corrupts the whole of the dough.
1 Thessalonians 1:6
And you followed the pattern set you by us and by the Master, after you had received the Message amid severe persecution, and yet with the joy which the Holy Spirit gives,