Yeast of the Pharisees and Herod

14But the disciples had forgotten to bring any food. They had only one loaf of bread with them in the boat. 15As they were crossing the lake, Jesus warned them, “Watch out! Beware of the yeast of the Pharisees and of Herod.”

16At this they began to argue with each other because they hadn’t brought any bread. 17Jesus knew what they were saying, so he said, “Why are you arguing about having no bread? Don’t you know or understand even yet? Are your hearts too hard to take it in? 18‘You have eyes—can’t you see? You have ears—can’t you hear?’*8:18 Jer 5:21. Don’t you remember anything at all?