How is it that ye do not understand that I spoke not to you concerning bread, that ye should beware of the leaven of the Pharisees and of the Sadducees?
But when he saw many of the Pharisees and Sadducees come to his baptism, he said to them, O generation of vipers, who hath warned you to flee from the wrath to come?
For I say to you, That except your righteousness shall exceed the righteousness of the scribes and Pharisees, ye shall in no case enter into the kingdom of heaven.