Matthew 17:14-21 And when they came to the crowd, a man came to him, falling on his knees before him, and saying,

Darby⁽ⁱ⁾ ¹⁴ And when they came to the crowd, a man came to him, falling on his knees before him, and saying, ¹⁵ Lord, have mercy on my son, for he is lunatic, and suffers sorely; for often he falls into the fire and often into the water. ¹⁶ And I brought him to thy disciples, and they were not able to heal him. ¹⁷ And Jesus answering said, O unbelieving and perverted generation, how long shall I be with you? how long shall I bear with you? Bring him here to me. ¹⁸ And Jesus rebuked him, and the demon went out from him, and the boy was healed from that hour. ¹⁹ Then the disciples, coming to Jesus apart, said [to him], Why were not *we* able to cast him out? ²⁰ And he says to them, Because of your unbelief; for verily I say unto you, If ye have faith as a grain of mustard [seed], ye shall say to this mountain, Be transported hence there, and it shall transport itself; and nothing shall be impossible to you. ²¹ But this kind does not go out but by prayer and fasting.