St Mark 11:20-25

And when they passed by in the morning they saw the fig tree dried up from the roots. And Peter remembering, said to him: Rabbi, behold the fig tree, which thou didst curse, is withered away. And Jesus answering, saith to them: Have the faith of God. Amen I say to you, that whosoever shall say to this mountain, Be thou removed and be cast into the sea, and shall not stagger in his heart, but believe, that whatsoever he saith shall be done; it shall be done unto him. Therefore I say unto you, all things, whatsoever you ask when ye pray, believe that you shall receive; and they shall come unto you. And when you shall stand to pray, forgive, if you have aught against any man; that your Father also, who is in heaven, may forgive you your sins.