13 Then the disciples understood that he spoke to them of John the Baptizer.
14 When they came to the multitude, there came to him a man, kneeling to him, saying,
15 "Lord, have mercy on my son, for he is epileptic, and suffers grievously; for he often falls into the fire, and often into the water.
16 So I brought him to your disciples, and they could not cure him."
17 Jesus answered, "Faithless and perverse generation! How long will I be with you? How long will I bear with you? Bring him here to me."
18 Jesus rebuked him, the demon went out of him, and the boy was cured from that hour.
19 Then the disciples came to Jesus privately, and said, "Why couldn`t we cast it out?"