Then they perceived that He had not warned them against bread-yeast, but against the teaching of the Pharisees and Sadducees.

Why is it you don’t understand that when I told you, ‘Beware of the yeast of the Pharisees and Sadducees,’ it wasn’t about bread?”

And they began reasoning among themselves, saying, "[Why be concerned about yeast since] we did not bring [any] bread?"