Matthew 13:42,50
And shall cast them into a furnace of fire: there shall be wailing and gnashing of teeth.
Nave's Topical Index—AKJV

Matthew 25:41
Then shall he say also to them on the left hand, Depart from me, you cursed, into everlasting fire, prepared for the devil and his angels:
Nave's Topical Index—AKJV

Mark 9:44
Where their worm dies not, and the fire is not quenched.
Nave's Topical Index—AKJV

Revelation 9:2
And he opened the bottomless pit; and there arose a smoke out of the pit, as the smoke of a great furnace; and the sun and the air were darkened by reason of the smoke of the pit.
Nave's Topical Index—AKJV

Revelation 21:8
But the fearful, and unbelieving, and the abominable, and murderers, and fornicators, and sorcerers, and idolaters, and all liars, shall have their part in the lake which burns with fire and brimstone: which is the second death.
Nave's Topical Index—AKJV