Luke 12:5

But I will warn you whom ye shall fear: Fear him, who after he hath killed hath power to cast into hell; yea, I say unto you, Fear him.

Psalm 9:17

The wicked shall be turned back unto Sheol, Even all the nations that forget God.

Matthew 10:28

And be not afraid of them that kill the body, but are not able to kill the soul: but rather fear him who is able to destroy both soul and body in hell.

2 Peter 2:4

For if God spared not angels when they sinned, but cast them down to hell, and committed them to pits of darkness, to be reserved unto judgment;

Proverbs 14:26

In the fear of Jehovah is strong confidence; And his children shall have a place of refuge.

Jeremiah 5:22

Fear ye not me? saith Jehovah: will ye not tremble at my presence, who have placed the sand for the bound of the sea, by a perpetual decree, that it cannot pass it? and though the waves thereof toss themselves, yet can they not prevail; though they roar, yet can they not pass over it.

Jeremiah 10:7

Who should not fear thee, O King of the nations? for to thee doth it appertain; forasmuch as among all the wise men of the nations, and in all their royal estate, there is none like unto thee.

Matthew 5:22

but I say unto you, that every one who is angry with his brother shall be in danger of the judgment; and whosoever shall say to his brother, Raca, shall be in danger of the council; and whosoever shall say, Thou fool, shall be in danger of the hell of fire.

Matthew 25:41

Then shall he say also unto them on the left hand, Depart from me, ye cursed, into the eternal fire which is prepared for the devil and his angels:

Matthew 25:46

And these shall go away into eternal punishment: but the righteous into eternal life.

Mark 13:23

But take ye heed: behold, I have told you all things beforehand.

1 Thessalonians 4:6

that no man transgress, and wrong his brother in the matter: because the Lord is an avenger in all these things, as also we forewarned you and testified.

Hebrews 10:31

It is a fearful thing to fall into the hands of the living God.

Revelation 14:7

and he saith with a great voice, Fear God, and give him glory; for the hour of his judgment is come: and worship him that made the heaven and the earth and sea and fountains of waters.

Revelation 15:4

Who shall not fear, O Lord, and glorify thy name? for thou only art holy; for all the nations shall come and worship before thee; for thy righteous acts have been made manifest.

Revelation 20:14

And death and Hades were cast into the lake of fire. This is the second death, even the lake of fire.

Treasury of Scripture Knowledge

Summary

But I will forewarn you whom ye shall fear: Fear him, which after he hath killed hath power to cast into hell; yea, I say unto you, Fear him.

General references

Bible References

Forewarn

Mark 13:23
But take ye heed: behold, I have told you all things beforehand.
1 Thessalonians 4:6
that no man transgress, and wrong his brother in the matter: because the Lord is an avenger in all these things, as also we forewarned you and testified.

Power

Psalm 9:17
The wicked shall be turned back unto Sheol, Even all the nations that forget God.
Matthew 10:28
And be not afraid of them that kill the body, but are not able to kill the soul: but rather fear him who is able to destroy both soul and body in hell.
Matthew 25:41
Then shall he say also unto them on the left hand, Depart from me, ye cursed, into the eternal fire which is prepared for the devil and his angels:
2 Peter 2:4
For if God spared not angels when they sinned, but cast them down to hell, and committed them to pits of darkness, to be reserved unto judgment;
Revelation 20:14
And death and Hades were cast into the lake of fire. This is the second death, even the lake of fire.

General references

Psalm 89:7
A God very terrible in the council of the holy ones, And to be feared above all them that are round about him?
Psalm 90:11
Who knoweth the power of thine anger, And thy wrath according to the fear that is due unto thee?

American Standard Version Public Domain