When I consider the lake of fire, or Gehenna,(hell being sheol, the grave and not the lake of fire or gehenna) in terms of how long it could possibly take for the “last enemy”, death, to be nullified so that God becomes ALL IN ALL, I look at it like this.
In Revelations John sees Jesus, His eyes are as flames of fire and a sharp sword is coming out of His mouth.
Heb 4:12 For the word of God is living and active and sharper than any two-edged sword, and piercing as far as the division of soul and spirit, of both joints and marrow, and able to judge the thoughts and intentions of the heart. 13 And there is no creature hidden from His sight, but all things are open and laid bare to the eyes of Him with whom we have to do.
Jesus said He would separate the wheat from the chaff and thoroughly purge His threshing floor, gathering the wheat and purging the chaff with unquenchable fire.
Separating the wheat from the chaff is how i see the lake of fire. Separating, gathering, purging.
God is light, and in Him there is no darkness at all, so light is fire to darkness.
God is love, and Our God is a consuming fire.
Throughout the ages evrything that is of darkness, that is not of love, is being consumed in the fire/light/love of God. It is the living word, the sharp two edged sword that rends the veils of self and brings every hidden thing to light- before the eyes of Jesus( their conscience also bearing witness, and their thoughts the mean while accusing or else excusing one another; In the day when God shall judge the secrets of men by Jesus Christ according to my gospel.)
Believers are already in the Day. Unbelievers have yet to come into the Day. (Every man will be salted with fire and every sacrifice will be seasoned with salt)
Every grain of wheat has seed and chaff. “Brokeness” or repentance, i.e. yielding to God happens in a variety of ways but it all involves being pierced by the word.
I think the fire in Gehenna, or the LOF is the same fire that is in the eyes of Jesus, and it consumes darkness, as light is fire to darkness, by the operation of the living word upon the ones held there, where they will be punished/corrected/separated “in the presence of God and His holy angels”.
In 1 Cor 3 we see that fire consumes the wood hay and stubble,15 If any man’s work is burned up, he will suffer loss; but he himself will be saved, yet so as through fire.
This again I see like wheat separated from chaff. “He himself”, the seed of the wheat is gathered into one in Christ, the chaff is burnt up with unquenchable fire(nullified, destroyed).
For believers I think this happens as we live(fiery trials purify faith) and at the judgement seat of Christ (where we must each give account for our deeds in the body).
For those whose names are not written in the Lamb’s book of life(“the Lord knows those who are His”, 2 Timothy 2) this occurs in the lake of fire, which imo is not a lake of molten lava or whatever. It is a metaphor for an experience of aionian kolassis that awaits the wicked in the age to come, about which we are not given definitive details, but are given insight into its nature if we look for it.
I think it is a divine intervention held in the midst of the general assembly of Hebrews 12., and may even represent an age to come.
“The court convened and the thrones were sat upon and the books were opened”…“Know you not the saints shall judge the world?..know you not that you shall judge angels?”
But whatever it is exactly, some will receive few stripes, some will receive many stripes, no one will get out until they have paid the last penny. IMO, the last penny is described in Philippians 2:9,10- "Every knee shall bow, whether in heaven or on eart or under the earth, and every tongue confess that Jesus Christ is Lord to the glory of God the Father.
When the last knee has bowed and the last tongue confessed and the last adversary subjected and reconciled, then death will be nullified/abolished and God will be all in all. That is when death is swallowed up by immortality and time will be no more(imo)
Isaiah 27:1 In that day the Lord with his sore and great and strong sword shall punish leviathan the piercing serpent, even leviathan that crooked serpent; and he shall slay the dragon that is in the sea.
2 In that day sing ye unto her, A vineyard of red wine.