18 When the spirit takes hold of him, it throws him to the ground. He foams at the mouth. He grinds his teeth. And his body becomes stiff. I asked your disciples to drive out the spirit. But they couldn't do it."
19 "You unbelieving people!" Jesus replied. "How long do I have to stay with you? How long do I have to put up with you? Bring the boy to me."
20 So they brought him. As soon as the spirit saw Jesus, it threw the boy into a fit. He fell to the ground. He rolled around and foamed at the mouth.
21 Jesus asked the boy's father, "How long has he been like this?" "Since he was a child," he answered.
22 "The spirit has often thrown him into fire or water to kill him. But if you can do anything, take pity on us. Please help us."
23 " 'If you can'?" said Jesus. "Everything is possible for the one who believes."
24 Right away the boy's father cried out, "I do believe! Help me overcome my unbelief!"