Matthew 17
14 Ref And when they were come to the multitude, there came to him a man, kneeling to him, saying,
15 Ref Lord, have mercy on my son: for he is epileptic, and suffereth grievously; for oft-times he falleth into the fire, and off-times into the water.
16 Ref And I brought him to thy disciples, and they could not cure him.
17 Ref And Jesus answered and said, O faithless and perverse generation, how long shall I be with you? how long shall I bear with you? bring him hither to me.
18 Ref And Jesus rebuked him; and the demon went out of him: and the boy was cured from that hour.
19 Ref Then came the disciples to Jesus apart, and said, Why could not we cast it out?
20 Ref And he saith unto them, Because of your little faith: 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.