Luke 17:6

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.

Matthew 17:20

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.

Matthew 21:21

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.

Mark 9:23

Jesus said to him, If thou canst believe, all things are possible to him that believeth.

Luke 13:19

It is like a grain of mustard-seed, which a man took, and cast into his garden, and it grew, and became a great tree; and the fowls of the air lodged in the branches of it.

Matthew 13:31-32

Another parable he proposed to them, saying, The kingdom of heaven is like a grain of mustard-seed, which a man took, and sowed in his field:

Mark 11:22-23

And Jesus answering, saith to them, Have faith in God.

Luke 19:4

And he ran before, and climbed up upon a sycamore-tree to see him; for he was to pass that way.

1 Corinthians 13:2

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.

Treasury of Scripture Knowledge

Summary

And the Lord said, If ye had faith as a grain of mustard seed, ye might say unto this sycamine tree, Be thou plucked up by the root, and be thou planted in the sea; and it should obey you.

Bible References

If

Matthew 17:20
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.
Matthew 21:21
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.
Mark 9:23
Jesus said to him, If thou canst believe, all things are possible to him that believeth.
Mark 11:22
And Jesus answering, saith to them, Have faith in God.
1 Corinthians 13:2
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.

As

Luke 13:19
It is like a grain of mustard-seed, which a man took, and cast into his garden, and it grew, and became a great tree; and the fowls of the air lodged in the branches of it.
Matthew 13:31
Another parable he proposed to them, saying, The kingdom of heaven is like a grain of mustard-seed, which a man took, and sowed in his field: