5 When the disciples got to the other side of the lake, they had forgotten to take bread,
6 and Jesus said to them, "Be on your guard against the yeast of the Pharisees and the Sadducees."
7 They were discussing this among themselves, saying, "It is because we have brought no bread."
8 But Jesus, when he knew it, said, "Why are you discussing among yourselves, O men of little faith, because you have no bread?
9 Do you not yet know? Do you not remember the five loaves of the five thousand and how many basketfuls you picked up?
10 Or the seven loaves of the four thousand and how many basketfuls you picked up?
11 How is it that you do not perceive that I was not speaking to you about bread? But beware of the yeast of the Pharisees and Sadducees."
12 Then they understood that he had told them to beware not of the yeast of bread, but of the teaching of the Pharisees and Sadducees.