How is it you do not perceive that I did not speak to you about bread, but to beware of the leaven of the Pharisees and Sadducees?"
Then the Pharisees and Sadducees came, and testing Him, they asked Him to show them a sign out of heaven.
Then they understood that He did not say to beware of the leaven of bread, but of the doctrine of the Pharisees and Sadducees.
Then Jesus said to them, "Look out and beware of the leaven of the Pharisees and the Sadducees."
But seeing many of the Pharisees and Sadducees coming to his baptism, he said to them, "Brood of vipers! Who warned you to flee from the coming wrath?
But He said to them, "Why are you so fearful? How is it that you do not have faith?"
Then He charged them, saying, "Look out, beware of the leaven of the Pharisees and the leaven of Herod."
So He said to them, "How is it you do not understand?"
Now in the meantime, as an innumerable crowd had gathered together so that they were stepping on one another, He began to say to His disciples first of all, "Beware of the leaven of the Pharisees, which is hypocrisy.
Hypocrites! You know how to discern the face of the earth and of the sky, but how is it you do not discern this time?
Why do you not understand what I say? Because you are unable to hear My word.