Mark 9:20-25

20So they brought him. When the spirit saw Jesus, it immediately threw the boy into a convulsion. He fell to the ground and rolled around, foaming at the mouth.

21Jesus asked the boy’s father, “How long has he been like this?” “From childhood,” he answered.

22“It has often thrown him into fire or water to kill him. But if you can do anything, take pity on us and help us.”

23“ ‘If you can’?” said Jesus. “Everything is possible for one who believes.”

24Immediately the boy’s father exclaimed, “I do believe; help me overcome my unbelief!”

25When Jesus saw that a crowd was running to the scene, he rebuked the impure spirit. “You deaf and mute spirit,” he said, “I command you, come out of him and never enter him again.”