Mark 9:48
where their worm dies not, and the fire is not quenched.
Isaiah 66:24
And they shall go forth, and look upon the carcases of the men that have transgressed against me: for their worm shall not die, neither shall their fire be quenched; and they shall be an abhorrence unto all flesh.
Matthew 25:41
Then shall he say also to those on the left, Go from me, cursed, into eternal fire, prepared for the devil and his angels:
Mark 9:43-45
And if thy hand serve as a snare to thee, cut it off: it is better for thee to enter into life maimed, than having thy two hands to go away into hell, into the fire unquenchable;