What Jesus Said About Faith.
And when they came to the multitude, there came to him a certain man, kneeling down to Jesus, and said, Lord, have mercy on my son: for he is lunatic, and sore vexed: for often he falls into the fire, and often into the water And I brought him to Your disciples, but they could not cure him. Then Jesus said, O faithless and perverse generation, how long shall I be with you? how long shall I suffer you? bring him here to Me. And Jesus rebuked the devil, and he departed out of him: and the child was cured from that very hour. Then came the disciples to Jesus apart, and said, Why could not we cast him out? And Jesus said unto them, Because of your unbelief: for verily I say unto you, If you have faith as a grain of mustard seed, you shall say unto this mountain, Remove hence to yonder place, and it shall remove, and nothing shall be impossible unto you. Howbeit this kind goes not out but by prayer and fasting. Matthew 17 vs 14-21.