 Beware of the leaven of the Pharisees. What was the leaven of the Pharisees? Legalism. He said, Beware of the leaven of the Sadducees. What was the leaven of the Sadducees? Liberalism. And then he said, Beware of the leaven of Herod. What was the leaven of Herod? It was licentiousness. Herod was a pleasure-mad, licentious king. And all three of these things, legalism, liberalism,