Luke 12:5

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

Psalm 9:17

The wicked shall be put into Sheol, all the Gentiles that forget God.

Matthew 10:28

And fear not those who 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 did not forgive the angels that sinned, but cast them down into the deepest abyss and delivered them into chains of darkness, to be reserved unto judgment;

Proverbs 14:26

In the fear of the LORD is strong confidence, and there his sons shall have hope.

Jeremiah 5:22

Do ye not fear me? saith the LORD; will ye not tremble at my presence, who placed the sand for the bound of the sea by an eternal order, which cannot be broken? Storms shall raise themselves up, yet they shall not prevail; their waves shall roar, yet they shall not pass over it.

Jeremiah 10:7

Who would not fear thee, O King of the Gentiles? for unto thee does it appertain: forasmuch as among all the wise men of the Gentiles and in all their kingdoms, there is none like unto thee.

Matthew 5:22

but I say unto you, That whosoever is angry with his brother out of control shall be in danger of the judgment, and whosoever shall insult his brother shall be in danger of the council, but whosoever shall say, Thou art impious, shall be in danger of hell.

Matthew 25:41

Then he shall also say unto those who shall be on the left hand, Depart from me, ye cursed, into eternal fire, prepared for the devil and his angels;

Matthew 25:46

And they shall go away into eternal punishment, but the righteous into eternal life.

Mark 13:23

But take ye heed; behold, I have told you everything beforehand.

1 Thessalonians 4:6

that no one oppress and defraud his brother in any matter because the Lord is the avenger of all such, as we also have forewarned you and testified.

Hebrews 10:31

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

Revelation 14:7

saying with a loud voice, Fear God and give glory to him, for the hour of his judgment is come; and worship him that has made the heaven and the earth and the sea and the fountains of waters.

Revelation 15:4

Who shall not fear thee, O Lord, and magnify thy name? for thou only art holy; therefore, all the Gentiles shall come and worship before thee; for thy judgments are made manifest.

Revelation 20:14

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

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 everything beforehand.
1 Thessalonians 4:6
that no one oppress and defraud his brother in any matter because the Lord is the avenger of all such, as we also have forewarned you and testified.

Power

Psalm 9:17
The wicked shall be put into Sheol, all the Gentiles that forget God.
Matthew 10:28
And fear not those who 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 he shall also say unto those who shall be on the left hand, Depart from me, ye cursed, into eternal fire, prepared for the devil and his angels;
2 Peter 2:4
For if God did not forgive the angels that sinned, but cast them down into the deepest abyss and delivered them into chains of darkness, to be reserved unto judgment;
Revelation 20:14
And Hades and death were cast into the lake of fire. This is the second death.

General references

Psalm 89:7
God is greatly to be feared in the assembly of the saints and to be had in reverence of all those that are about him.
Psalm 90:11
Who knows the power of thine anger? that thy wrath is not less than our fear.