Then they realized that he wasn't warning them to watch out for bread yeast, but about the teachings of the Pharisees and Sadducees.
Haven't you worked it out yet that I wasn't talking to you about bread? Watch out for the yeast of the Pharisees and Sadducees!”
But when John saw many of the Pharisees and Sadducees coming to be baptized, he said to them, “You vipers' brood! Who warned you to run away from the coming judgment?
I tell you, unless your moral rightness is more than that of the religious teachers and the Pharisees, you can never enter the kingdom of heaven.
(The Sadducees say there is no resurrection from the dead, no angels, and no spirits, but Pharisees believe in all of these.)
You shouldn't be proud about this. Don't you know that it only takes a little yeast to make the whole batch of dough rise?