Luke 17:6

if your faith improv'd like a grain of mustard-seed, you might say to this sycamine-tree, be thou rooted up, and planted in the sea; and it should obey you.

Matthew 17:20

because of your incredulity, said Jesus: for I tell you truly, if ye had ever so little faith, ye might say to this mountain, remove hence to yonder place, and it should remove; and nothing would be too difficult for you.

Matthew 21:21

Jesus answered them, I declare to you, if ye have a full assurance of faith, ye shall not only be able to do this to a fig-tree, but if ye should even say to this mountain, be thou removed, and cast into the sea; it should be done.

Mark 9:23

Jesus said to him, provided you can believe, there is nothing but what may be effected for those that believe.

Luke 13:19

it is like a grain of mustard-seed, which a man took, and sowed in his garden: it grew, and became so large, that the birds of the air built their nests in its boughs.

Matthew 13:31-32

He propos'd another parable to them, which was this; the gospel-state is like a grain of mustard-seed which a man took to sow in his field.

Mark 11:22-23

but Jesus replied, and said to them, rely upon God.

Luke 19:4

so he ran before, and climb'd up a mulberry-tree to view him; for he was to pass that way.

1 Corinthians 13:2

and tho' I should have the gift of prophecy, and understand all mysteries, and all knowledge; and tho' I had all the faith necessary to remove mountains, and had no benevolence, it would signify 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
because of your incredulity, said Jesus: for I tell you truly, if ye had ever so little faith, ye might say to this mountain, remove hence to yonder place, and it should remove; and nothing would be too difficult for you.
Matthew 21:21
Jesus answered them, I declare to you, if ye have a full assurance of faith, ye shall not only be able to do this to a fig-tree, but if ye should even say to this mountain, be thou removed, and cast into the sea; it should be done.
Mark 9:23
Jesus said to him, provided you can believe, there is nothing but what may be effected for those that believe.
Mark 11:22
but Jesus replied, and said to them, rely upon God.
1 Corinthians 13:2
and tho' I should have the gift of prophecy, and understand all mysteries, and all knowledge; and tho' I had all the faith necessary to remove mountains, and had no benevolence, it would signify nothing.

As

Luke 13:19
it is like a grain of mustard-seed, which a man took, and sowed in his garden: it grew, and became so large, that the birds of the air built their nests in its boughs.
Matthew 13:31
He propos'd another parable to them, which was this; the gospel-state is like a grain of mustard-seed which a man took to sow in his field.