Matthew 17:7, 20-21

But Jesus walked over and touched them, saying, “Get up and stop being afraid.”

He told them, “It was because of your lack of faith. I promise you, if you have faith inside of you no bigger than the size of a small mustard seed, you can say to this mountain, ‘Move away from here and go over there,’ and you will see it move! There is nothing you couldn’t do! But this kind is cast out only through prayer and fasting.”