2 Thessalonians 1:8

"In flaming fire taking vengeance on them that know not God, and that obey not the gospel of our Lord Jesus Christ:"

Cross References (ranked by relevance)

1 Peter 4:17 14

For the time is come that judgment must begin at the house of God: and if it first begin at us, what shall the end be of them that obey not the gospel of God?

Hebrews 10:27 11

But a certain fearful looking for of judgment and fiery indignation, which shall devour the adversaries.

2 Peter 3:7 11

But the heavens and the earth, which are now, by the same word are kept in store, reserved unto fire against the day of judgment and perdition of ungodly men.

Psalm 79:6

Pour out thy wrath upon the heathen that have not known thee, and upon the kingdoms that have not called upon thy name.

Hebrews 10:30

For we know him that hath said, Vengeance belongeth unto me, I will recompense, saith the Lord. And again, The Lord shall judge his people.

Galatians 4:8

Howbeit then, when ye knew not God, ye did service unto them which by nature are no gods.

Romans 6:16

Know ye not, that to whom ye yield yourselves servants to obey, his servants ye are to whom ye obey; whether of sin unto death, or of obedience unto righteousness?

Hebrews 2:3

How shall we escape, if we neglect so great salvation; which at the first began to be spoken by the Lord, and was confirmed unto us by them that heard him;

Matthew 25:41

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

Zephaniah 1:6

And them that are turned back from the LORD; and those that have not sought the LORD, nor enquired for him.

Hebrews 12:29

For our God is a consuming fire.

Revelation 20:10

And the devil that deceived them was cast into the lake of fire and brimstone, where the beast and the false prophet are, and shall be tormented day and night for ever and ever.

Revelation 21:8

But the fearful, and unbelieving, and the abominable, and murderers, and whoremongers, and sorcerers, and idolaters, and all liars, shall have their part in the lake which burneth with fire and brimstone: which is the second death.

1 Thessalonians 4:5

Not in the lust of concupiscence, even as the Gentiles which know not God:

Exodus 5:2

And Pharaoh said, Who is the LORD, that I should obey his voice to let Israel go? I know not the LORD, neither will I let Israel go.

Deuteronomy 4:11

And ye came near and stood under the mountain; and the mountain burned with fire unto the midst of heaven, with darkness, clouds, and thick darkness.

Genesis 3:24

So he drove out the man; and he placed at the east of the garden of Eden Cherubims, and a flaming sword which turned every way, to keep the way of the tree of life.

Romans 1:28

And even as they did not like to retain God in their knowledge, God gave them over to a reprobate mind, to do those things which are not convenient;

Isaiah 61:2

To proclaim the acceptable year of the LORD, and the day of vengeance of our God; to comfort all that mourn;

Deuteronomy 32:35

To me belongeth vengeance, and recompence; their foot shall slide in due time: for the day of their calamity is at hand, and the things that shall come upon them make haste.