Mark 11:20-23

And as they passed by in the morning, they saw the fig tree withered away from the roots. And Peter calling to remembrance saith unto him, Rabbi, behold, the fig tree which thou cursedst is withered away. And Jesus answering saith unto them, Have faith in God. Verily I say unto you, Whosoever shall say unto this mountain, Be thou taken up and cast into the sea; and shall not doubt in his heart, but shall believe that what he saith cometh to pass; he shall have it.