"Elijah does come first and restores everything," He replied. "How then is it written about the Son of Man that He must suffer many things and be treated with contempt?
But I tell you that Elijah really has come, and they did to him whatever they wanted, just as it is written about him."
When they came to the disciples, they saw a large crowd around them and scribes disputing with them.
All of a sudden, when the whole crowd saw Him, they were amazed and ran to greet Him.
Then He asked them, "What are you arguing with them about?"
Out of the crowd, one man answered Him, "Teacher, I brought my son to You. He has a spirit that makes him unable to speak.
Wherever it seizes him, it throws him down, and he foams at the mouth, grinds his teeth, and becomes rigid. So I asked Your disciples to drive it out, but they couldn't."
He replied to them, "You unbelieving generation! How long will I be with you? How long must I put up with you? Bring him to Me."
So they brought him to Him. When the spirit saw Him, it immediately convulsed the boy. He fell to the ground and rolled around, foaming at the mouth.
"How long has this been happening to him?" Jesus asked his father. "From childhood," he said.
"And many times it has thrown him into fire or water to destroy him. But if You can do anything, have compassion on us and help us."
Then Jesus said to him, " 'If You can?' Everything is possible to the one who believes."
Immediately the father of the boy cried out, "I do believe! Help my unbelief."
When Jesus saw that a crowd was rapidly coming together, He rebuked the unclean spirit, saying to it, "You mute and deaf spirit, I command you: come out of him and never enter him again!"
Then it came out, shrieking and convulsing him violently. The boy became like a corpse, so that many said, "He's dead."
But Jesus, taking him by the hand, raised him, and he stood up.
After He went into a house, His disciples asked Him privately, "Why couldn't we drive it out?"
And He told them, "This kind can come out by nothing but prayer [and fasting]."