The vengeance of ETERNAL FIRE
Then the LORD rained upon Sodom and upon Gomorrah brimstone and fire from the LORD out of heaven;
And he overthrew those cities, and all the plain, and all the inhabitants of the cities, and that which grew upon the ground.
--GENESIS 19.24-25
Even as Sodom and Gomorrha, and the cities about them in like manner,
giving themselves over to fornication, and going after strange flesh,
are set forth for an example, suffering the vengeance of eternal fire.
--JUDE 1.7
Think about FIRE...