The problem with this debate lies within the question itself, I feel: "Will unbelievers spend eternity in the Lake of Fire?"
I used to believe that Christians will spend eternity with God in Heaven, and unbelievers will spend eternity in Hell, where there is pain, suffering, etc. Over the past 5 or 6 months, my views were changed slightly. Nowhere in the Bible does it mention about humans having "eternal torment" for not believing in Jesus. Allow me to explain myself.
Genesis 2:17: but from the tree of the knowledge of good and evil you shall not eat, for in the day that you eat from it you will surely die.
This death is not refering to a physical death. This can be seen clearly by the fact that Adam lived for 930 years, most of which were spent after eating of the fruit! "Death" here refers to a spiritual death - separation from God. These effects were felt right from the moment Adam and Eve bit into the fruit. From the moment they sinned, they felt the guilt of the sin, the sadness, the separation from God. Their spiritual life was destroyed.
Romans 6:23: For the wages of sin is death, but the free gift of God is eternal life in Christ Jesus our Lord.
If you sin, you pay the penalty - death. Spiritual death. You feel the separation from God. But the free gift of God is eternal life - the opposite of death! Not just "living forever", but having life, eternal, divine happiness, and feeling close to God for eternity! Life to the full! As Jesus says:
John 10:10: I came that they may have life, and have it to the full.
Jesus gives us a life worth living! Not a life full of death, pain, sorrow, sadness, depression. Eternal life starts here, on earth, before we physically die.
Our life on earth is where the test comes: to believe God, and accept the sacrifice jesus made; or to reject God, claiming it was all lies. After this life on earth, it is too late to change your mind! God has given us enough chances. When we physically die, we cannot say to God, "Actually, I have changed my mind! Now that I have seen that you are real, and that those Christians were right about Heaven and Hell, I would like to be let in to Heaven!" Its too late.
But would God really torment people for eternity? As I have understood it, Hell is likened to Gehenna: a garbage dump outside of Jerusalem, where there is a fire which never goes out. But, if a piece of rubbish is thrown on that dump, then the eternal fire will burn it up. The piece of rubbish does not burn for eternity! This is my understanding of Hell - when an unbeliever dies, they will be thrown onto the "garbage dump of Heaven": Hell. Here, they face their punishment until they are burned up. (Whether it is a literal fire with a literal burning up, I do not know.) In Hell, the soul is destroyed: it does not "live forever" in a state of eternal torment (after all, this would effectively be eternal life - a life of eternal torment). This could be where the "second death" in Revelation comes in.
The only "beings" who are tormented for eternity are the devil, the beast, and the false prophet:
Revelation 20:10: And the devil who deceived them was thrown into the lake of fire and brimstone, where the beast and the false prophet are also; and they will be tormented day and night forever and ever.
There is nothing here to suggest that humans will be tormented for eternity.
Matthew 25:46: These will go away into eternal punishment, but the righteous into eternal life.
Eternal punishment. Not eternal torment. The difference is that "torment" means pain and suffering for eternity. The wages of sin is death, not torment. When a soul is destroyed, it will never be brought back to a state where it can live again. Hence, the punishment - death - is eternal. The death is forever, because there is no coming back from it.
This is also shown in the famous verse of:
John 3:16: For God so loved the world, that He gave His only begotten Son, that whoever believes in Him shall not perish, but have eternal life.
If you do not believe in Jesus, then you will perish - your soul will die. If you do believe in Jesus, then you will have a life worth living - a life spent with God - for all eternity!
As to what actually happens in Hell, I do not know. There may well be torment, pain, suffering. I simply do not know.
So, as I said at the start, I feel the question is at fault: unbelievers will not spend eternity in a lake of fire, but they will be there until they are destroyed.
Please feel free to respond to me directly (mikeyg_35 (at) hotmail.com): I would love to know what people think of this idea, as it is new to me, but it seems to make sense!
Mike.