14 When they returned to the other disciples, they saw a large crowd surrounding them, and some teachers of religious law were arguing with them. 15 When the crowd saw Jesus, they were overwhelmed with awe, and they ran to greet him. 16 "What is all this arguing about?" Jesus asked. 17 One of the men in the crowd spoke up and said, "Teacher, I brought my son so you could heal him. He is possessed by an evil spirit that won't let him talk. 18 And whenever this spirit seizes him, it throws him violently to the ground. Then he foams at the mouth and grinds his teeth and becomes rigid. So I asked your disciples to cast out the evil spirit, but they couldn't do it." 19 Jesus said to them, "You faithless people! How long must I be with you? How long must I put up with you? Bring the boy to me." 20 So they brought the boy. But when the evil spirit saw Jesus, it threw the child into a violent convulsion, and he fell to the ground, writhing and foaming at the mouth. 21 "How long has this been happening?" Jesus asked the boy's father. He replied, "Since he was a little boy. 22 The spirit often throws him into the fire or into water, trying to kill him. Have mercy on us and help us, if you can." 23 "What do you mean, 'If I can'?" Jesus asked. "Anything is possible if a person believes." 24 The father instantly cried out, "I do believe, but help me overcome my unbelief!" 25 When Jesus saw that the crowd of onlookers was growing, he rebuked the evil spirit. "Listen, you spirit that makes this boy unable to hear and speak," he said. "I command you to come out of this child and never enter him again!" 26 Then the spirit screamed and threw the boy into another violent convulsion and left him. The boy appeared to be dead. A murmur ran through the crowd as people said, "He's dead." 27 But Jesus took him by the hand and helped him to his feet, and he stood up. 28 Afterward, when Jesus was alone in the house with his disciples, they asked him, "Why couldn't we cast out that evil spirit?" 29 Jesus replied, "This kind can be cast out only by prayer. "
30 Leaving that region, they traveled through Galilee. Jesus didn't want anyone to know he was there, 31 for he wanted to spend more time with his disciples and teach them. He said to them, "The Son of Man is going to be betrayed into the hands of his enemies. He will be killed, but three days later he will rise from the dead." 32 They didn't understand what he was saying, however, and they were afraid to ask him what he meant.
Matthew Henry's Commentary on Mark 9:14-32
Commentary on Mark 9:14-29
(Read Mark 9:14-29)
The father of the suffering youth reflected on the want of power in the disciples; but Christ will have him reckon the disappointment to the want of faith. Very much is promised to our believing. If thou canst believe, it is possible that thy hard heart may be softened, thy spiritual diseases may be cured; and, weak as thou art, thou mayest be able to hold out to the end. Those that complain of unbelief, must look up to Christ for grace to help them against it, and his grace will be sufficient for them. Whom Christ cures, he cures effectually. But Satan is unwilling to be driven from those that have been long his slaves, and, when he cannot deceive or destroy the sinner, he will cause him all the terror that he can. The disciples must not think to do their work always with the same ease; some services call for more than ordinary pains.
Commentary on Mark 9:30-40
(Read Mark 9:30-40)
The time of Christ's suffering drew nigh. Had he been delivered into the hands of devils, and they had done this, it had not been so strange; but that men should thus shamefully treat the Son of man, who came to redeem and save them, is wonderful. Still observe that when Christ spake of his death, he always spake of his resurrection, which took the reproach of it from himself, and should have taken the grief of it from his disciples. Many remain ignorant because they are ashamed to inquire. Alas! that while the Saviour teaches so plainly the things which belong to his love and grace, men are so blinded that they understand not his sayings. We shall be called to account about our discourses, and to account for our disputes, especially about being greater than others. Those who are most humble and self-denying, most resemble Christ, and shall be most tenderly owned by him. This Jesus taught them by a sign; whoever shall receive one like this child, receives me. Many have been like the disciples, ready to silence men who have success in preaching to sinners repentance in Christ's name, because they follow not with them. Our Lord blamed the apostles, reminding them that he who wrought miracles in his name would not be likely to hurt his cause. If sinners are brought to repent, to believe in the Saviour, and to live sober, righteous, and godly lives, we then see that the Lord works by the preacher.