Oh, whoops. I'm sorry. I think we forgot all of the verses outside of Revelation a book known for its symbolism that clearly say the punishment is death and destruction.
You do realize that even these three verses you picked out still do not say directly what happens to human beings, right? Rev 14:11 is clearly a punishment that is still happening on Earth (otherwise you can't saw that hell is separation from God, because it says right there in the verse that the torment via fire and brimstone is happening IN THE PRESENCE of the Lamb). And again, apocalyptic literature?
And the previous two verses you've cited make no reference to torment upon human beings.
I pray none of you go through the mental anguish of thinking God hates you enough to want to eternally torture you like myself, poor SnowTiger, and so many others who want to believe in and be at peace with Christ had to go through. I pray none of you suffer Scrupulosity. You would change your tune thinking this abominable doctrine is of the Holy Spirit if you did soon enough. The fire from God has never done anything to humans but destroy and consume them when used against them in the Bible. It is ridiculous to believe that it instead preserves them in torment - the complete opposite function - when no such example has ever been given. Well, other than the obvious cruelty. And no, I'm not judging God's ways in saying that, because the Bible never says those are His ways. The wages of sin is death, period (and that is by far not the only verse that makes it clear that the ultimate fate of unbelievers is destruction and an end to life, not living forever in misery. Not spiritual death. Not eternal torment. Just death. In case anyone wants to play the cite Scriptural proof game).
And in case anyone wants to use the cliche "Jesus taught hell" argument (like that somehow proves eternal torment anyway, only that there is a hell), even Jesus Himself said that God could destroy both soul and body in Gehenna. Not torture it. Destroy means destroy, not preserve in pain.
I can't blame you, though, for believing it. Tradition is a powerful thing. And it took eight months of living in hell on Earth to snap me out of it. God willing at the end of his misery SnowTiger will reject the eternal torment doctrine, too, and rest better in God's love. I refuse to believe for one second that it is God doing this to SnowTiger, or that it was God giving me the fear and emotional anguish in my own time of sickness, because the traditional hell doctrine is good to Him. I refuse to blaspheme God by doing that.