13 So he got back into the boat and left them, and he crossed to the other side of the lake.
14 But the disciples had forgotten to bring any food. They had only one loaf of bread with them in the boat. 15 As they were crossing the lake, Jesus warned them, "Watch out! Beware of the yeast of the Pharisees and of Herod." 16 At this they began to argue with each other because they hadn't brought any bread. 17 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? 18 'You have eyes-can't you see? You have ears-can't you hear?' Don't you remember anything at all? 19 When I fed the 5,000 with five loaves of bread, how many baskets of leftovers did you pick up afterward?" "Twelve," they said. 20 "And when I fed the 4,000 with seven loaves, how many large baskets of leftovers did you pick up?" "Seven," they said. 21 "Don't you understand yet?" he asked them.
Matthew Henry's Commentary on Mark 8:13-21
Commentary on Mark 8:11-21
(Read Mark 8:11-21)
Obstinate unbelief will have something to say, though ever so unreasonable. Christ refused to answer their demand. If they will not be convinced, they shall not. Alas! what cause we have to lament for those around us, who destroy themselves and others by their perverse and obstinate unbelief, and enmity to the gospel! When we forget the works of God, and distrust him, we should chide ourselves severely, as Christ here reproves his disciples. How is it that we so often mistake his meaning, disregard his warnings, and distrust his providence?