But Jesus answered and said to them, "Have faith in God."
Amen I say to you, whoever says to this mountain, "Arise, and hurl thyself into the sea," and does not waver in his heart, but believes that whatever he says will be done, it shall be done for him.
Therefore I say to you, all things whatever you ask for in prayer, believe that you shall receive, and they shall come to you.
And when you stand up to pray, forgive whatever you have against anyone, that your Father in heaven may also forgive you your offenses.
But if you do not forgive, neither will your Father in heaven forgive you your offenses. (Mark 11: 22-26)