Mark 11:20-25

And passing by early in the morning they saw the fig-tree dried up from the roots. And Peter, remembering what Jesus had said, says to him, Rabbi, see, the fig-tree which thou cursedst is dried up. And Jesus answering says to them, Have faith in God. Verily I say to you, that whosoever shall say to this mountain, Be thou taken away and cast into the sea, and shall not doubt in his heart, but believe that what he says takes place, whatever he shall say shall come to pass for him. For this reason I say to you, All things whatsoever ye pray for and ask, believe that ye receive it, and it shall come to pass for you. And when ye stand praying, forgive if ye have anything against any one, that your Father also who is in the heavens may forgive you your offences.