James 1:6

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.

Ephesians 4:14

That we henceforth be no more children, tossed to and fro, and carried about with every wind of doctrine, by the sleight of men, and cunning craftiness, whereby they lie in wait to deceive;

Matthew 21:21-22

Jesus answered and said unto them, Verily I say unto 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 unto this mountain, Be thou removed, and be thou cast into the sea; it shall be done.

Mark 11:22-24

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

1 Timothy 2:8

I will therefore that men pray every where, lifting up holy hands, without wrath and doubting.

Hebrews 10:23

Let us hold fast the profession of our faith without wavering; (for he is faithful that promised;)

Hebrews 11:6

But without faith it is impossible to please him: for he that cometh to God must believe that he is, and that he is a rewarder of them that diligently seek him.

Hebrews 13:9

Be not carried about with divers and strange doctrines. For it is a good thing that the heart be established with grace; not with meats, which have not profited them that have been occupied therein.

2 Peter 2:17

These are wells without water, clouds that are carried with a tempest; to whom the mist of darkness is reserved for ever.

Jude 1:12-13

These are spots in your feasts of charity, when they feast with you, feeding themselves without fear: clouds they are without water, carried about of winds; trees whose fruit withereth, without fruit, twice dead, plucked up by the roots;

Genesis 49:4

Unstable as water, thou shalt not excel; because thou wentest up to thy father's bed; then defiledst thou it: he went up to my couch.

Treasury of Scripture Knowledge

Summary

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.

Bible References

Let

Matthew 21:22
And all things, whatsoever ye shall ask in prayer, believing, ye shall receive.
Mark 11:22
And Jesus answering saith unto them, Have faith in God.
1 Timothy 2:8
I will therefore that men pray every where, lifting up holy hands, without wrath and doubting.
Hebrews 11:6
But without faith it is impossible to please him: for he that cometh to God must believe that he is, and that he is a rewarder of them that diligently seek him.

He

Genesis 49:4
Unstable as water, thou shalt not excel; because thou wentest up to thy father's bed; then defiledst thou it: he went up to my couch.
Ephesians 4:14
That we henceforth be no more children, tossed to and fro, and carried about with every wind of doctrine, by the sleight of men, and cunning craftiness, whereby they lie in wait to deceive;
Hebrews 10:23
Let us hold fast the profession of our faith without wavering; (for he is faithful that promised;)
Hebrews 13:9
Be not carried about with divers and strange doctrines. For it is a good thing that the heart be established with grace; not with meats, which have not profited them that have been occupied therein.
2 Peter 2:17
These are wells without water, clouds that are carried with a tempest; to whom the mist of darkness is reserved for ever.
Jude 1:12
These are spots in your feasts of charity, when they feast with you, feeding themselves without fear: clouds they are without water, carried about of winds; trees whose fruit withereth, without fruit, twice dead, plucked up by the roots;

King James Version Public Domain