And the Lord said, If your faith was only as great as a grain of mustard seed, you might say to this tree, Be rooted up and planted in the sea; and it would be done.
2 Chronicles 16:7
At that time Hanani the seer came to Asa, king of Judah, and said to him, Because you have put your faith in the king of Aram and not in the Lord your God, the army of the king of Aram has got away out of your hands.
And he said to them, Where is your faith? And fear and wonder overcame them, and they said to one another, Who then is this, who gives orders even to the winds and the water and they do what he says?
Give the offerings of righteousness, and put your faith in the Lord.
And he was unable to do any work of power there, but only to put his hands on one or two persons who were ill, and make them well.
And he was greatly surprised because they had no faith. And he went about the country places teaching.
And Jesus in answer said to them, Truly I say to you, If you have faith, without doubting, not only may you do what has been done to the fig-tree, but even if you say to this mountain, Be taken up and put into the sea, it will be done.
For which reason, because we have righteousness through faith, let us be at peace with God through our Lord Jesus Christ;
But to him who without working has faith in him who gives righteousness to the evil-doer, his faith is put to his account as righteousness.