Mat 17:16-20 | Barnes | STEP | Verse 16. And I brought him to thy disciples , etc. That is, not to the apostles, for they had power over unclean spirits, but to others of his followers, who attempted to work miracles. It is probable that many of his disciples attempted this, who were not personal attendants on his ministry, .

Matthew 17:16-20

Verse 16. And I brought him to thy disciples, etc. That is, not to the apostles, for they had power over unclean spirits, Mt 10:8 but to others of his followers, who attempted to work miracles. It is probable that many of his disciples attempted this, who were not personal attendants on his ministry, Mk 9:38. Verse 17. Then Jesus answered and said, O faithless and perverse generation! Perverse means that which is twisted or turned from the proper direction; and is often used of the eyes, when one or both are turned from the natural position. Applied to a generation, or race of men, it means that they hold opinions turned or perverted from the truth, and that they were wicked in their conduct. He applied this probably to the Jews, and not to his real disciples.

How long shall I suffer you? That is, how long shall I bear with you? How long is it necessary to show such patience and forbearance with your unbelief and perversity? This was not an expression of impatience or complaint, so much as a proof that they were so slow to believe that he was the Messiah, notwithstanding his miracles, and that even his disciples so slowly learned to put the proper trust in him.

Mark adds, (Mk 9:20-22,) that when he that was possessed was brought, the spirit, by a last desperate struggle, threw him down, and tore him, and left him apparently dead. He adds farther, that the case had existed during the whole life of his son, from a child. This was a case of uncommon obstinacy. The affliction was fixed and lasting. The disciples, seeing the obstinacy of the case--seeing him dumb, wasted away, torn, and foaming--despaired of being able to cure him. They lacked the faith which was necessary; doubted whether they could cure him, and therefore could not.

Jesus said to the father, Mk 9:23 "If thou canst believe, all things are possible to him that believeth." That is, this cure shall be effected if you have faith. Not that his faith would give Jesus the power to heal him, but it would render it proper that he should exert that power in his favour. In this way, and in this only, are all things possible to believers. The man had faith, Mk 9:24. The father came, as a father should do, weeping, and praying that his faith might be increased, so as to make it proper that Jesus should interpose in his behalf, and save his child. "Help my unbelief," (Mk 9:24). This was an expression of humility. If my faith is defective, supply what is lacking. Help me to overcome my unbelief. Let not the defect of my faith be in the way of this blessing. Verse 18. And Jesus rebuked the devil. The word rebuke has the combined force of reproving and commanding. He reproved him for having afflicted the child, and he commanded him to come out of him. Mk 9:25 has recorded the words which he used--words implying reproof and command: "Thou dumb and deaf spirit, I charge thee, come out of him, and enter no more into him." And the spirit cried, and with a mighty convulsion came out, leaving him apparently dead. Jesus lifted him up by the hand, (Mark,) and gave him to his father, (Luke.) Verse 19. Then came the disciples, etc. This inquiry was made in some house to which they retired near the place where the miracle was performed, (Mark) Jesus told them, in reply, that it was because of their unbelief that they had not been able to cast him out. They were appalled by the difficulty of the case, and the obstinacy of the disease. Their faith would not have made it more easy for God to work this miracle, but such was his will; such the way in which he worked miracles, that he required faith in those who were the instruments. Verse 20. As a grain of mustard seed. Mt 13:31,32. The mustard seed was the smallest of all Seeds. It has been supposed by some, therefore, that he meant to say, if ye have the smallest or feeblest faith that is genuine, ye can do all things. The mustard seed produced the largest of all herbs. It has been supposed by others, therefore, to mean, If you have increasing, expanding, enlarged faith, growing and strengthening from small beginnings, you can perform the most difficult undertaking. There is a principle of vitality in the grain of seed, stretching forward to great results, which illustrates the nature of faith. Your faith should be like that. This is probably the true meaning.

Ye shall say unto this mountain, etc. Probably he pointed to a mountain near, to assure them, if they had such faith, they might accomplish the most difficult undertakings--things that at first would appear impossible.

(q) "unbelief" Heb 3:9 (r) "if ye have" Mt 21:21, Mk 11:23, Lk 17:6, 1Cor 13:2