nkjv Matthew:17:19-21
nkjv@Matthew:17:19 @ Then the disciples came to Jesus privately and said, "Why could we not cast it out?"
nkjv@Matthew:17:20 @ So Jesus said to them, "Because of your unbelief; for assuredly, I say to you, if you have faith as 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.
nkjv@Matthew:17:21 @ However, this kind does not go out except by prayer and fasting."