Mark 9:48
where their worm dieth not, and the fire is not quenched.
Isaiah 66:24
And they shall go forth, and look upon the dead bodies 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 abhorring unto all flesh.
Matthew 25:41
Then shall he say also unto them on the left hand, Depart from me, ye cursed, into the eternal fire which is prepared for the devil and his angels:
Mark 9:43-45
And if thy hand cause thee to stumble, cut it off: it is good for thee to enter into life maimed, rather than having thy two hands to go into hell, into the unquenchable fire.