Mark 9:29

The story ends in an unexpected way. It emphasizes the importance of prayer more than the importance of faith (compare 11:22–24).

This is the fourth and final time Jesus drives out demons in Mark's Gospel (1:21–28; 5:1–20; 7:24–30). The disciples could not drive out the demon, so Jesus performed the exorcism. This emphasizes the need for faith (see 2:5; 5:34; 10:52). This is another example of the great healing ability of Jesus and of the failure of the disciples (8:32–33; 9:5–7).

We have here the story of Christ casting the devil out of a child, somewhat more fully related than it was in Mat 17:14, etc. Observe here,
I. Christ's return to his disciples, and the perplexity he found them in. He laid aside his robes of glory, and came to look after his family, and to enquire what was become of them. Christ's glory above does not make him forget the concerns of his church below, which he visits in great humility, Mat 17:14. And he came very seasonably, when the disciples were embarrassed and run a-ground; the scribes, who were sworn enemies both to him and them, had gained an advantage against them. A child possessed with a devil was brought to them, and they could not cast out the devil, whereupon the scribes insulted over them, and reflected upon their Master, and triumphed as if the day were their own. He found the scribes questioning with them, in the hearing of the multitude, some of whom perhaps began to be shocked by it. Thus Moses, when he came down from the mount, found the camp of Israel in great disorder; so soon were Christ and Moses missed. Christ's return was very welcome, no doubt, to the disciples, and unwelcome to the scribes. But particular notice is taken of its being very surprising to the people, who perhaps were ready to say, As for this Jesus, we wot not what is become of him; but when they beheld him coming to them again, they were greatly amazed (some copies add, kai exephobēthēsan - and they were afraid); and running to him (some copies for prostrechontes, read proschairontes - congratulating him, or bidding him welcome), they saluted him. It is easy to give a reason why they should be glad to see him; but why where they amazed, greatly amazed, when they beheld him? Probably, there might remain something unusual in his countenance; as Moses's face shone when he came down from the mount, which made the people afraid to come nigh him, Exo 34:30. So perhaps did Christ's face, in some measure; at least, instead of seeming fatigued, there appeared a wonderful briskness and sprightliness in his looks, which amazed them.
II. The case which perplexed the disciples, brought before him. He asked the scribes, who, he knew, were always vexatious to his disciples, and teasing them upon every occasion, "What question ye with them? What is the quarrel now?" The scribes made no answer, for they were confounded at his presence; the disciples made none, for they were comforted, and now left all to him. But the father of the child opened the case, Mar 9:17, Mar 9:18. 1. His child is possessed with a dumb spirit; he has the falling-sickness, and in his fits is speechless; his case is very sad, for, wheresoever the fit takes him, the spirit tears him, throws him into such violent convulsions as almost pull him to pieces; and, which is very grievous to himself, and frightful to those about him, he foams at his mouth, and gnashes with his teeth, as one in pain and great misery; and though the fits go off presently, yet they leave him so weak, that he pines away, is worn to a skeleton; his flesh is dried away; so the word signifies, Psa 102:3-5. This was a constant affliction to a tender father. 2. The disciples cannot give him any relief; "I desired they would cast him out, as they had done many, and they would willingly have done it, but they could not; and therefore thou couldest never have come in better time; Master, I have brought him to thee."
III. The rebuke he gave to them all (Mar 9:19); O faithless generation, how long shall I be with you? How long shall I suffer you? Dr. Hammond understands this as spoken to the disciples, reproving them for not exerting the power he had given them, and because they did not fast and pray, as in some cases he had directed them to do. But Dr. Whitby takes it as a rebuke to the scribes, who gloried in this disappointment that the disciples met with, and hoped to run them down with it. Them he calls a faithless generation, and speaks as one weary of being with them, and of bearing with them. We never heard him complaining, "How long shall I be in this low condition, and suffer that?" But, "How long shall I be among these faithless people, and suffer them?"
IV. The deplorable condition that the child was actually in, when he was brought to Christ, and the doleful representation which the father made of it. When the child saw Christ, he fell into a fit; The spirit straightway tore him, boiled within him, troubled him (so Dr. Hammond); as if the devil would set Christ at defiance, and hoped to be too hard for him too, and to keep possession in spite of him. The child fell on the ground, and wallowed foaming. We may put another construction upon it - that the devil raged, and had so much the greater wrath, because he knew that his time was short, Rev 7:12. Christ asked, How long since this came to him? And, it seems, the disease was of long standing; it came to him of a child (Mar 9:21), which made the case the more sad, and the cure more difficult. We are all by nature children of disobedience, and in such the evil spirit works, and has done so from our childhood; for foolishness is bound in the heart of a child, and nothing but the mighty grace of Christ can cast it out.
V. The pressing instances which the father of the child makes with Christ for a cure (Mar 9:22); Ofttimes it hath cast him into the fire, and into the waters, to destroy him. Note, The devil aims at the ruin of those in whom he rules and works, and seeks whom he may devour. But, if thou canst do any thing, have compassion on us, and help us. The leper was confident of Christ's power, but put an if upon his will (Mat 8:2); If thou wilt, thou canst. This poor man referred himself to his good-will, but put an if upon his power, because his disciples, who cast out devils in his name, had been non-plussed in this case. Thus Christ suffers in his honour by the difficulties and follies of his disciples.
VI. The answer Christ gave to his address (Mar 9:23); If thou canst believe, all things are possible to him that believeth. Here, 1. He tacitly checks the weakness of his faith. The sufferer put it upon Christ's power, If thou canst do any thing, and reflected on the want of power in the disciples; but Christ turns it upon him, and puts him upon questioning his own faith, and will have him impute the disappointment to the want of that; If thou canst believe. 2. He graciously encourages the strength of his desire; "All things are possible, will appear possible, to him that believes the almighty power of God, to which all things are possible;" or "That shall be done by the grace of God, for them that believe in the promise of God, which seemed utterly impossible." Note, In dealing with Christ, very much is put upon our believing, and very much promised it. Canst thou believe? Darest thou believe? Art thou willing to venture thy all in the hands of Christ? To venture all thy spiritual concerns with him, and all thy temporal concerns for him? Canst thou find in thy heart to do this? If so, it is not impossible but that, though thou has been a great sinner, thou mayest be reconciled; though thou art very mean and unworthy, thou mayest get to heaven. If thou canst believe, it is possible that thy hard heart may be softened, thy spiritual diseases may be cured; and that, weak as thou art, thou mayest be able to hold out to the end.
VII. The profession of faith which the poor man made hereupon (Mar 9:24); He cried out, "Lord, I believe; I am fully persuaded both of thy power and of thy pity; my cure shall not be prevented by the want of faith; Lord, I believe." He adds a prayer for grace to enable him more firmly to rely upon the assurances he had of the ability and willingness of Christ to save; Help thou my unbelief. Note, 1. Even those who through grace can say, Lord, I believe, have reason to complain of their unbelief; that they cannot so readily apply to themselves, and their own case, the word of Christ as they should, no so cheerfully depend upon it. 2. Those that complain of unbelief, must look up to Christ for grace to help them against it, and his grace shall be sufficient for them. "Help mine unbelief, help me to a pardon for it, help me with power against it; help out what is wanting in my faith with thy grace, the strength of which is perfected in our weakness."
VIII. The cure of the child, and the conquest of this raging devil in the child. Christ saw the people come running together, expecting to see the issue of this trial of skill, and therefore kept them in suspense no longer, but rebuked the foul spirit; the unclean spirit, so it should be rendered, as in other places. Observe, 1. What the charge was which Christ gave to this unclean spirit; "Thou dumb and deaf spirit, that makest the poor child dumb and deaf, but shalt thyself be made to hear thy doom, and not be able to say any thing against it, come out of him immediately, and enter no more into him. Let him not only be brought out of this fit, but let his fits never return." Note, Whom Christ cures, he cures effectually. Satan may go out himself, and yet recover possession; but if Christ cast him out, he will keep him out. 2. How the unclean spirit took it; he grew yet more outrageous, he cried, and rent him sore, gave him such a twitch at parting, that he was as one dead; so loth was he to quit his hold, so exasperated at the superior power of Christ, so malicious to the child, and so desirous was he to kill him. Many said, He is dead. Thus the toss that a soul is in at the breaking of Satan's power in it may perhaps be frightful for the present, but opens the door to lasting comfort. 3. How the child was perfectly restored (Mar 9:27); Jesus took him by the hand, kratēsas - took fast hold of him, and strongly bore him up, and he arose and recovered, and all was well.
IX. The reason he gave to the disciples why they could not cast out this devil. They enquired of him privately why they could not, that wherein they were defective might be made up another time, and they might not again be thus publicly shamed; and he told them (Mar 9:29), This kind can come forth by nothing but prayer and fasting. Whatever other difference there really might be, none appears between this and other kinds, but that the unclean spirit had had possession of this poor patient from a child, and that strengthened his interest, and confirmed his hold. When vicious habits are rooted by long usage, and begin to plead prescription, like chronical diseases that are hardly cured. Can the Aethiopian change his skin? The disciples must not think to do their work always with a like ease; some services call them to take more than ordinary pains; but Christ can do that with a word's speaking, which they must prevail for the doing of by prayer and fasting.

Mark 9:28-29

Matthew 17:19-21

Mark 9:28-29

Luke 17:5-6

19. Then the disciples, coming to Jesus apart, said, Why could not we cast it out? 20. And Jesus said to them, On account of your unbelief; for verily I say to you, If you have faith as a grain of mustard-seed, you shall say to this mountain. Remove thou hence, and it shall remove; and nothing shall be impossible to you. 21. But this kind [490] goeth not out but by prayer and fasting.

28. And when he had entered into the house, his disciples asked him apart, Why could not we cast out? 29. And he said to them, This kind [491] cannot go out in any other way than by prayer and fasting.

5. And the apostles said to the Lord, Increase our faith. 6. And the Lord said, If you had faith as a grain of mustard-seed, you might say to this sycamore tree. Be thou rooted up and planted in the sea; and it would obey you.

Matthew 17:19. Then the disciples coming. The disciples wonder that the power which they once possessed has been taken from them; but they had lost it by their own fault. Christ therefore attributes this want of ability to their unbelief, and repeats and illustrates more largely the statement which he had previously made, that nothing is impossible to faith It is a hyperbolical mode of expression, no doubt, when he declares that faith removes trees and mountains; but the meaning amounts to this, that God will never forsake us, if we keep the door open for receiving his grace. He does not mean that God will give us every thing that we may mention, or that may strike our minds at random. On the contrary, as nothing is more at variance with faith than the foolish and irregular desires of our flesh, it follows that those in whom faith reigns do not desire every thing without discrimination, but only that which the Lord promises to give. Let us therefore maintain such moderation as to desire nothing beyond what he has promised to us, and to confine our prayers within that rule which he has laid down.

But it may be objected, that the disciples did not know whether or not the Lord was pleased to cure the lunatic It is easy to reply, that it was their own fault if they did not know; for Christ is now speaking expressly about special faith, which had its secret instincts, as the circumstances of the case required. And this is the faith of which Paul speaks, (1 Corinthians 12:9.) How then came it that the apostles were deprived of the power of the Spirit, which they had formerly exercised in working miracles, but because they had quenched it by their indolence? But what Christ said about special faith, in reference to this particular event, may be extended to the common faith of the whole Church.

21. This kind goeth not out, [492] By this expression Christ reproved the negligence of certain persons, in order to inform them that it was not an ordinary faith which was required; for otherwise they might have replied that they were not altogether destitute of faith The meaning therefore is, that it is not every kind of faith that will suffice, when we have to enter into a serious conflict with Satan, but that vigorous efforts are indispensably necessary. For the weakness of faith he prescribes prayer as a remedy, to which he adds fasting by way of an auxiliary. "You are effeminate exorcist," said he, "and seem as if you were engaged in a mock-battle got up for amusement; [493] but you have to deal with a powerful adversary, who will not yield till the battle has been fought out. Your faith must therefore be excited by prayer, and as you are slow and languid in prayer, you must resort to fasting as an assistance." [494] Hence it is very evident how absurdly the Papists represent fasting to be the specific method of driving away devils, since our Lord refers to it for no other reason than to stimulate the earnestness of prayer. When he says that this kind of devils cannot be cast out in any other way than by prayer and fasting, he means that, when Satan has taken deep root in any one, and has been confirmed by long possession, or when he rages with unbridled fury, the victory is difficult and painful, and therefore the contest must be maintained with all our might.

Footnotes:

[490] "Mais ceste sorte [de diables] ne sort point;" -- "but this kind [of devils] goeth not out."

[491] "Ceste espece [de diables] ne sort point;" -- "this kind [of devils] goeth not out."

[492] "Cest espece [de diablos] ne sort point;" -- "this kind [of devils] goeth not out."

[493] "Vous y venez ainsi qu'a un combat de petits enfans, et comme s'il n'estoit question que de s'escarmoucher pour passe-temps." -- "You come to it as if it were to a fight of little children, and as if you had nothing to do but to skirmish for amusement."

[494] "Comme une aide pour vous exciter et enflamber;" -- "as an assistance to excite and inflame you."

Prayer and fasting - See on Mat 17:21 (note).
This demon may be considered as an emblem of deeply rooted vices, and inveterate habits, over which the conquest is not generally obtained, but through extraordinary humiliations.
This case is related by both Matthew and Luke, but it is greatly amplified in Mark's account, and many new circumstances related. Another proof that Mark did not abridge Matthew.

And he said unto them,.... Matthew, besides the following reason, assigns another, as given by our Lord, why they could not cast out the foul spirit, which was their unbelief; of which they were guilty in some sort, as well as the Jews, and the father of the child; but Mark omits it, and only relates this as the reason;

this kind can come forth by nothing, but by prayer and fasting; which they had not observed; See Gill on Matthew 17:21.

See Poole on ""