Luke 17:6

and the Lord said, 'If ye had faith as a grain of mustard, ye would have said to this sycamine, Be uprooted, and be planted in the sea, and it would have obeyed you.

Matthew 17:20

And Jesus said to them, 'Through your want of faith; for verily I say to you, if ye may have faith as a grain of mustard, ye shall say to this mount, Remove hence to yonder place, and it shall remove, and nothing shall be impossible to you,

Matthew 21:21

And Jesus answering said to them, 'Verily I say to you, If ye may have faith, and may not doubt, not only this of the fig-tree shall ye do, but even if to this mount ye may say, Be lifted up and be cast into the sea, it shall come to pass;

Mark 9:23

And Jesus said to him, 'If thou art able to believe! all things are possible to the one that is believing;'

Luke 13:19

It is like to a grain of mustard, which a man having taken, did cast into his garden, and it increased, and came to a great tree, and the fowls of the heavens did rest in its branches.'

Matthew 13:31-32

Another simile he set before them, saying: 'The reign of the heavens is like to a grain of mustard, which a man having taken, did sow in his field,

Mark 11:22-23

And Jesus answering saith to them, 'Have faith of God;

Luke 19:4

and having run forward before, he went up on a sycamore, that he may see him, because through that way he was about to pass by.

1 Corinthians 13:2

and if I have prophecy, and know all the secrets, and all the knowledge, and if I have all the faith, so as to remove mountains, and have not love, 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, 'Through your want of faith; for verily I say to you, if ye may have faith as a grain of mustard, ye shall say to this mount, Remove hence to yonder place, and it shall remove, and nothing shall be impossible to you,
Matthew 21:21
And Jesus answering said to them, 'Verily I say to you, If ye may have faith, and may not doubt, not only this of the fig-tree shall ye do, but even if to this mount ye may say, Be lifted up and be cast into the sea, it shall come to pass;
Mark 9:23
And Jesus said to him, 'If thou art able to believe! all things are possible to the one that is believing;'
Mark 11:22
And Jesus answering saith to them, 'Have faith of God;
1 Corinthians 13:2
and if I have prophecy, and know all the secrets, and all the knowledge, and if I have all the faith, so as to remove mountains, and have not love, I am nothing;

As

Luke 13:19
It is like to a grain of mustard, which a man having taken, did cast into his garden, and it increased, and came to a great tree, and the fowls of the heavens did rest in its branches.'
Matthew 13:31
Another simile he set before them, saying: 'The reign of the heavens is like to a grain of mustard, which a man having taken, did sow in his field,