Matthew 17:20

20 He said to them, “Because of your little faith. For truly, I say to you, if you have faith like a grain of mustard seed, you will say to this mountain, ‘Move from here to there,’ and it will move, and nothing will be impossible for you.” [1]

Footnotes

[1] 17:20 Some manuscripts insert verse 21: But this kind never comes out except by prayer and fasting