Matthew 17:14-18

When Jesus and his followers came back to the crowd, a man came to Jesus and bowed before him. The man said, “Lord, have mercy on my son. He has epilepsy and is suffering very much, because he often falls into the fire or into the water. I brought him to your followers, but they could not cure him.” Jesus answered, “You people have no faith, and your lives are all wrong. How long must I put up with you? How long must I continue to be patient with you? Bring the boy here.” Jesus commanded the demon inside the boy. Then the demon came out, and the boy was healed from that time on.