Mark 9:19-29

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

20 And they brought him to him: and when he saw him, immediately the spirit tore him; and he fell on the ground, and wallowed, foaming.

21 And he asked his father, How long is it since this came to him? and he said, From a child.

22 And often 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.

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

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

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

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

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

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

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