The Miracles of Jesus

Healing the Boy with a Demon

Foot of the mountain · After the Transfiguration · Mark 9:14-29

Coming down from the mountain of Transfiguration, Jesus found a crowd and an argument. A father had brought his son, seized from childhood by a spirit that made him dumb, threw him down, and often into fire and water. The disciples had failed to cast it out. The father pleaded, If thou canst do any thing, and Jesus answered that all things are possible to him who believes. The man cried, Lord, I believe; help thou mine unbelief. Jesus rebuked the deaf and dumb spirit, charging it to leave and enter no more. The boy lay as dead, but Jesus took him by the hand and lifted him up. He later told the disciples this kind comes out only by prayer.

The scene

While Jesus was on the mountain being transfigured before Peter, James, and John, the other disciples were failing at the bottom of it. A crowd had gathered, scribes were disputing, and at the center stood a desperate father whose son had suffered since childhood.

“And one of the multitude answered and said, Master, I have brought unto thee my son, which hath a dumb spirit;”
Mark 9:17

The affliction was violent and long.

“And wheresoever he taketh him, he teareth him: and he foameth, and gnasheth with his teeth, and pineth away: and I spake to thy disciples that they should cast him out; and they could not.”
Mark 9:18

What Jesus did

The father's request carried a wound of doubt: if you can do anything, help us. Jesus turned the if back to him, placing the question where it belonged, not on his own power but on faith.

“Jesus said unto him, If thou canst believe, all things are possible to him that believeth.”
Mark 9:23

The father's answer is one of the most honest prayers in Scripture, a cry of faith and struggle in the same breath.

“And straightway the father of the child cried out, and said with tears, Lord, I believe; help thou mine unbelief.”
Mark 9:24

Jesus then spoke directly to the spirit and ended its hold for good.

“When Jesus saw that the people came running together, he rebuked the foul spirit, saying unto him, Thou dumb and deaf spirit, I charge thee, come out of him, and enter no more into him.”
Mark 9:25

The spirit convulsed the boy so violently that many thought him dead, but Jesus took him by the hand and raised him up whole.

What the sign reveals

This sign reveals that faith is not a possession we must produce in perfect strength before Christ will act. The father believed and doubted at once, and he brought both to Jesus rather than hiding the doubt. Lord, I believe; help thou mine unbelief is the prayer of a real person, and Jesus honored it. He does not wait for flawless faith; he answers faith that is honest about its weakness and turns to him for help even in believing.

It reveals the seriousness and destructiveness of evil. The spirit had tried to kill the boy in fire and water since childhood, isolating him by taking away speech and hearing. Jesus met it not with negotiation but with authority, charging it to come out and never return. His deliverance is not partial; he closes the door behind the enemy.

And it reveals the difference between Jesus and his disciples. They had tried and failed, and afterward asked why. His answer, that this kind comes out only by prayer, exposes a powerlessness that had crept in where dependence on God had thinned. The authority is his to give, but it is exercised in prayer, not in technique.

Its place in the Gospel

Mark sets this scene immediately after the Transfiguration, and the contrast is deliberate. On the mountain, glory, the voice of the Father, Moses and Elijah. At its foot, failure, confusion, a screaming boy, and disciples who could not help. The two scenes together show why Jesus came down: the world at the bottom of the mountain is the world he came to save. Glory did not keep him on the height; it sent him into the crowd. You can read the mountain at the Transfiguration.

This is the last exorcism recorded in Mark's Gospel, and it lands just as Jesus begins turning toward Jerusalem and the cross. The disciples' failure here is part of a larger picture Mark is painting of followers who still do not understand and still cannot do what their Master does, men who will need the cross and resurrection, and the coming of the Spirit, before they can stand.

Privately, Jesus taught them the lesson of dependence.

“And he said unto them, This kind can come forth by nothing, but by prayer and fasting.”
Mark 9:29

How it meets us

The father's prayer belongs to every honest believer. We rarely come to Christ with faith untroubled by doubt. This story tells us we do not have to. Bring the belief you have and the unbelief you fear, and lay both before him. Lord, I believe; help thou mine unbelief is enough of a prayer for Jesus to work with, because the power was never in the strength of our faith but in the object of it.

It also speaks to parents and to all who carry others in prayer. The father had watched this affliction destroy his child since infancy and had run out of options, even the disciples had failed him, yet he kept coming until he reached Jesus himself. Do not let long disappointment or the failures of others turn you back before you have brought the burden to Christ.

And it recalls the church to prayer. When we find ourselves powerless where we should be strong, the answer is not better methods but deeper dependence on God. This kind comes out by prayer. The path to Christ's power is the path of humble, prayerful reliance on him. Begin by coming to meet him.

Notice, finally, where the father brought his son when the disciples had failed. He did not conclude that the whole enterprise was false because the followers were weak; he pressed on to the Master himself. It is a wise instinct still. The failures of Christians, real and painful, are never the last word, because Christ is not his followers. When those who represent him let you down, do not stop at them. Bring your need all the way to him.

Where it points

The boy lay as one dead until Jesus took him by the hand and lifted him up, and Mark's language quietly reaches toward resurrection. This deliverance, like the others, points to the cross, where Jesus would face the full fury of evil and death not to expel it from another but to bear it himself, and to the empty tomb, where he was raised, having broken the power that had tried since the boy's childhood to destroy him.

The father's honest cry points ahead too. On the far side of the resurrection, faith like his, real, weak, dependent, is exactly the faith that saves, because it rests not on its own force but on a living Christ who conquered death. The Lord who lifted the boy from the ground is the Lord who was lifted from the grave, and who lifts all who call on him.

There is hope here for the long, discouraging cases, the afflictions that have gripped since childhood and resisted every effort. Jesus did not ask how long the boy had suffered before deciding whether to help; he simply drove the spirit out and charged it never to return. The years of torment did not lessen his power or his willingness. No history of failure, however long, sets a limit on what the risen Christ can do.

See the power that finally breaks the grip of death and evil at the resurrection.

Can these things really happen?

Many honest readers ask whether miracles can happen at all. Since the Enlightenment, some have argued that the laws of nature rule them out, that a report of a wonder is always less likely than a mistake or a legend. Christians answer that the laws of nature describe how the world normally runs; they do not forbid the God who made it from acting within it. A miracle is not nature breaking down but its Author drawing near. You do not have to settle that question before you read; you only have to read honestly and ask what best explains the witness before you. We look at this more fully in miracles and the laws of nature.

Frequently asked questions

What is the meaning of the healing of the boy with a demon?
It reveals that Jesus honors honest, struggling faith and holds complete authority over evil. A father admits both belief and doubt, crying, Lord, I believe; help thou mine unbelief, and Jesus casts out the spirit for good. It shows that the power is not in the strength of our faith but in Christ, received through prayer.
Where in the Bible is the boy with a demon?
The fullest account is Mark 9:14-29, with parallels in Matthew 17:14-21 and Luke 9:37-43. It takes place at the foot of the mountain immediately after the Transfiguration, when Jesus comes down to find his disciples unable to cast the spirit out.
What does Lord, I believe; help thou mine unbelief mean?
It is the father's honest prayer, admitting that he genuinely believes yet is still troubled by doubt, and asking Jesus to strengthen the faith he lacks. It teaches that we need not have perfect faith before coming to Christ; we can bring our belief and our doubt together, and he will answer.

Come and see him for yourself

The miracles were never meant to end in wonder. John says they were written ‘that ye might believe that Jesus is the Christ, the Son of God; and that believing ye might have life through his name’ (John 20:31). The same Jesus who touched the leper and stilled the sea still draws near to everyone who comes to him with an open heart. Read his own words, watch what he does, and see. The Gospel of John is a gentle place to begin.

Meet JesusRead the Gospel of JohnThe resurrection

Jesus Christ is Lord.

Explore furtherRead Mark 9Casting Out the Legion of DemonsThe Syrophoenician Woman's DaughterAll the miracles
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