Matthew 17

 14And when they were come to the multitude, there came to him a certain man, kneeling down to him, and saying,

   15Lord, have mercy on my son: for he is lunatick, and sore vexed: for ofttimes he falleth into the fire, and oft into the water.

   16And I brought him to thy disciples, and they could not cure him.

   17Then Jesus answered and said, O faithless and perverse generation, how long shall I be with you? how long shall I suffer you? bring him hither to me.

   18And Jesus rebuked the devil; and he departed out of him: and the child was cured from that very hour.

   19Then came the disciples to Jesus apart, and said, Why could not we cast him out?

   20And Jesus said unto them, Because of your unbelief: for verily I say unto you, If ye have faith as a grain of mustard seed, ye shall say unto this mountain, Remove hence to yonder place; and it shall remove; and nothing shall be impossible unto you.

   21Howbeit this kind goeth not out but by prayer and fasting.

Mark 9

 14And when he came to his disciples, he saw a great multitude about them, and the scribes questioning with them.

   15And straightway all the people, when they beheld him, were greatly amazed, and running to him saluted him.

   16And he asked the scribes, What question ye with them?

   17And one of the multitude answered and said, Master, I have brought unto thee my son, which hath a dumb spirit;

   18And wheresoever he taketh him, he teareth him: and he foameth, and gnasheth with his teeth, and pineth away: and I spake to thy disciples that they should cast him out; and they could not.

   19He answereth him, and saith, O faithless generation, how long shall I be with you? how long shall I suffer you? bring him unto me.

   20And they brought him unto him: and when he saw him, straightway the spirit tare him; and he fell on the ground, and wallowed foaming.

   21And he asked his father, How long is it ago since this came unto him? And he said, Of a child.

   22And ofttimes it hath cast him into the fire, and into the waters, to destroy him: but if thou canst do any thing, have compassion on us, and help us.

   23Jesus said unto him, If thou canst believe, all things are possible to him that believeth.

   24And straightway the father of the child cried out, and said with tears, Lord, I believe; help thou mine unbelief.

   25When Jesus saw that the people came running together, he rebuked the foul spirit, saying unto him, Thou dumb and deaf spirit, I charge thee, come out of him, and enter no more into him.

   26And the spirit cried, and rent him sore, and came out of him: and he was as one dead; insomuch that many said, He is dead.

   27But Jesus took him by the hand, and lifted him up; and he arose.

   28And when he was come into the house, his disciples asked him privately, Why could not we cast him out?

   29And he said unto them, This kind can come forth by nothing, but by prayer and fasting.

Luke 9

   37And it came to pass, that on the next day, when they were come down from the hill, much people met him.

   38And, behold, a man of the company cried out, saying, Master, I beseech thee, look upon my son: for he is mine only child.

   39And, lo, a spirit taketh him, and he suddenly crieth out; and it teareth him that he foameth again, and bruising him hardly departeth from him.

   40And I besought thy disciples to cast him out; and they could not.

   41And Jesus answering said, O faithless and perverse generation, how long shall I be with you, and suffer you? Bring thy son hither.

   42And as he was yet a coming, the devil threw him down, and tare him. And Jesus rebuked the unclean spirit, and healed the child, and delivered him again to his father.

   43And they were all amazed at the mighty power of God. But while they wondered every one at all things which Jesus did, he said unto his disciples,