Matthew 13:33
He told them still another parable: "The kingdom of heaven is like yeast that a woman took and mixed into three measures of flour, until all of it was leavened."

Exodus 8:3
The Nile will teem with frogs, and they will come into your palace and up to your bedroom and onto your bed, into the houses of your officials and your people, and into your ovens and kneading bowls.

Exodus 12:39
Since their dough had no yeast, the people baked what they had brought out of Egypt into unleavened loaves. For when they had been driven out of Egypt, they could not delay and had not prepared any provisions for themselves.