James 1:6

But let him ask in faith, doubting as to nothing; for he that doubts is like unto a wave of the sea driven by the winds and tossed by the tempest.

Ephesians 4:14

in order that we may be no longer infants, tossed by the waves and carried about by every wind of teaching, in the caprice of the people, in their craftiness, pursuant to their method of delusion;

Matthew 21:21-22

And Jesus responding said to them, Truly I say unto you, if you may have faith, and doubt not, not only shall you do that of the fig-tree, but you shall say to this mountain, Be thou taken up and cast into the sea, and it will be done.

Mark 11:22-24

And Jesus responding says to them, Have God's faith.

1 Timothy 2:8

Therefore I wish that men in every place would all pray, holding up holy hands, without wrath and doubting:

Hebrews 10:23

and washed as to our body with purifying water: let us hold fast the testimony of hope steadfast; for the one having promised is faithful;

Hebrews 11:6

but without faith it is impossible to please him: for it behooves the one coming unto God to believe that he is, and he is a rewarder unto them who seek him out.

Hebrews 13:9

Be not carried away with fantastical and strange teachings: for it is good that the heart be established with grace; not with meats, in which those going round were not profited.

2 Peter 2:17

These are fountains without water, and mists driven away by the storm, for which the blackness of darkness has been reserved.

Jude 1:12-13

These are rocks in your love-feasts, feasting along with you without fear shepherdizing themselves, clouds without water, driven away by the winds; withered trees, without fruit, twice dead, plucked up by the roots;

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
All things whatsoever you may ask in prayer, believing, you shall receive.
Mark 11:22
And Jesus responding says to them, Have God's faith.
1 Timothy 2:8
Therefore I wish that men in every place would all pray, holding up holy hands, without wrath and doubting:
Hebrews 11:6
but without faith it is impossible to please him: for it behooves the one coming unto God to believe that he is, and he is a rewarder unto them who seek him out.

He

Ephesians 4:14
in order that we may be no longer infants, tossed by the waves and carried about by every wind of teaching, in the caprice of the people, in their craftiness, pursuant to their method of delusion;
Hebrews 10:23
and washed as to our body with purifying water: let us hold fast the testimony of hope steadfast; for the one having promised is faithful;
Hebrews 13:9
Be not carried away with fantastical and strange teachings: for it is good that the heart be established with grace; not with meats, in which those going round were not profited.
2 Peter 2:17
These are fountains without water, and mists driven away by the storm, for which the blackness of darkness has been reserved.
Jude 1:12
These are rocks in your love-feasts, feasting along with you without fear shepherdizing themselves, clouds without water, driven away by the winds; withered trees, without fruit, twice dead, plucked up by the roots;