The Sadducees: Christ: Cautioned his Disciples Against Their Principles

“Watch out!” Jesus told them. “Beware of the leaven of the Pharisees and Sadducees.”

How do you not understand that I was not telling you about bread? But beware of the leaven of the Pharisees and Sadducees.”

Then they understood that He was not telling them to beware of the leaven used in bread, but of the teaching of the Pharisees and Sadducees.