MSB(i)
19 Afterward the disciples came to Jesus privately and asked, “Why couldn’t we drive it out?”
20 “Because of your unbelief,” Jesus answered. “For truly I tell you, if you have faith the size of a mustard seed, you can say to this mountain, ‘Move from here to there,’ and it will move. Nothing will be impossible for you.
21 But this kind does not go out except by prayer and fasting.”