Now as the crowds were increasing, He began to say, “This generation is a wicked generation; it demands a sign, and so no sign will be given to it except the sign of Jonah.
But when he saw many of the Pharisees and Sadducees coming for baptism, he said to them, “You offspring of vipers, who warned you to flee from the wrath to come?
For whoever is ashamed of Me and My words in this adulterous and sinful generation, the Son of Man will also be ashamed of him when He comes in the glory of His Father with the holy angels.”
Under these circumstances, after so many thousands of people had gathered together that they were stepping on one another, He began saying to His disciples first of all, “Beware of the leaven of the Pharisees, which is hypocrisy.
You are of your father the devil, and you want to do the desires of your father. He was a murderer from the beginning, and does not stand in the truth because there is no truth in him. Whenever he tells a lie, he speaks from his own nature, because he is a liar and the father of lies.