Mark 8:17-21
8:17 When he learned of this, Jesus said to them, “Why are you arguing about having no bread? Do you still not see or understand? Have your hearts been hardened?
8:18 Though you have eyes, don’t you see? And though you have ears, can’t you hear? Don’t you remember?
8:19 When I broke the five loaves for the five thousand, how many baskets full of pieces did you pick up?” They replied, “Twelve.”
8:20 “When I broke the seven loaves for the four thousand, how many baskets full of pieces did you pick up?” They replied, “Seven.”
8:21 Then he said to them, “Do you still not understand?”