16. And I brought him to your disciples, and they were not able to heal him.”
17. And Jesus answered and said, “O unbelieving and perverse generation! How long will I be with you? How long must I put up with you? Bring him here to me!”
18. And Jesus rebuked him, and the demon came out of him and the boy was healed from that hour.
19. Then the disciples approached Jesus privately and said, Why were we not able to expel it?”
20. And he said to them, “Because of your little faith. For truly I say to you, if you have faith like a mustard seed, you will say to this mountain, ‘Move from here to there,’ and it will move, and nothing will be impossible for you.”