6 "'Be careful,' Yahvsave said to them.  'Be on your guard against the leaven of the Pharisees and Sadducees.'...

11 "'...How is it you don't understand that I was not talking to you about bread?   But be on your guard against the leaven of the Pharisees and Sadducees.'

12 "Then they understood that he was not telling them to guard against the leaven used in bread, but against the teachings of the Pharisees and Sadducees."