Matthew 16:11

How is it that you do not see that I was not talking to you about bread, but about keeping away from the leaven of the Pharisees and Sadducees?

Matthew 16:6

And Jesus said to them, Take care to have nothing to do with the leaven of the Pharisees and Sadducees.

Mark 4:40

And he said to them, Why are you full of fear? have you still no faith?

Mark 8:21

And he said to them, Is it still not clear to you?

Luke 12:56

O false ones! the face of the earth and the heaven is clear to you; how is it that the signs of these times are not as clear to you?

John 8:43

Why are my words not clear to you? It is because your ears are shut to my teaching.

Treasury of Scripture Knowledge did not add

Basic English, produced by Mr C. K. Ogden of the Orthological Institute - public domain