Mark 8:13-21

So he got back into the boat and left them, and he crossed to the other side of the lake. But the disciples had forgotten to bring any food. They had only one loaf of bread with them in the boat. As they were crossing the lake, Jesus warned them, “Watch out! Beware of the yeast of the Pharisees and of Herod.” At this they began to argue with each other because they hadn’t brought any bread. Jesus 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? ‘You have eyes—can’t you see? You have ears—can’t you hear?’ Don’t you remember anything at all? When I fed the 5,000 with five loaves of bread, how many baskets of leftovers did you pick up afterward?” “Twelve,” they said. “And when I fed the 4,000 with seven loaves, how many large baskets of leftovers did you pick up?” “Seven,” they said. “Don’t you understand yet?” he asked them.