21 Jesus answered and said to them, Verily I say to you, If ye have faith, and doubt not, ye shall not only do this which is done to the fig-tree, but also, if ye shall say to this mountain, Be thou removed, and be thou cast into the sea; it shall be done.
Matthew 21:21 Cross References - Webster
Matthew 8:12
12 But the children of the kingdom shall be cast out into utter darkness: there shall be weeping and gnashing of teeth.
Matthew 17:20
20 And Jesus said to them, Because of your unbelief: for verily I say to you, If ye have faith as a grain of mustard-seed, ye shall say to this mountain, Remove hence to yonder place, and it shall remove; and nothing shall be impossible to you.
Mark 11:22-23
22 And Jesus answering, saith to them, Have faith in God.
23 For verily I say to you, that whoever shall say to this mountain, Be thou removed, and be thou cast into the sea; and shall not doubt in his heart, but shall believe that the things which he saith shall come to pass; he shall have whatever he saith.
Luke 17:6-7
6 And the Lord said, If ye had faith as a grain of mustard-seed, ye might say to this sycamine-tree, Be thou plucked up by the root, and be thou planted in the sea; and it would obey you.
7 But which of you having a servant plowing, or feeding cattle, will say to him immediately, when he is come from the field, Go and sit down to eat?
Romans 4:19-20
1 Corinthians 13:2
2 And though I have the gift of prophecy, and understand all mysteries, and all knowledge; and though I have all faith, so that I could remove mountains, and have not charity, I am nothing.
James 1:6
6 But let him ask in faith, nothing wavering. For he that wavereth is like a wave of the sea driven with the wind and tossed.