Matthew 21:20-22

And when the disciples saw it, they marveled, saying, “How did the fig tree wither away so soon?” So Jesus answered and said to them, “Assuredly, I say to you, if you have faith and do not doubt, you will not only do what was done to the fig tree, but also if you say to this mountain, ‘Be removed and be cast into the sea,’ it will be done. And whatever things you ask in prayer, believing, you will receive.”