Truth be told; I don't think the lake of fire is literal. I think it is allegorical. And does not exist yet.I think we've narrowed the disagreement to where it really belongs.
I agree that Sheol and Hades are often closely related concepts, and I agree that Scripture's emphasis is overwhelmingly on the resurrection rather than on disembodied existence.
I also agree that many Christians speak far more confidently about what happens immediately after death than the biblical text itself sometimes warrants.
However, I would still hesitate to say that Sheol, Hades, Gehenna, and the lake of fire all mean exactly the same thing.
The biblical writers use different terms in different contexts, and those differences need to be accounted for rather than flattened into a single concept.
As for Philippians 1:23 and 2 Corinthians 5:8, I think we've arrived at the crucial question.
You are no longer arguing merely: "Philippians 1:23 doesn't mean being with Christ."
You are arguing:
"Philippians 1:23 does mean being with Christ, but that experience occurs at the resurrection, which is the next conscious moment experienced by the believer."
That is a much stronger and more coherent argument than simply dismissing the verse.
Where I still remain unconvinced is with 2 Corinthians 5.
In Philippians 1, I can see how your explanation works.
In 2 Corinthians 5, Paul's contrast between "at home in the body" and "present with the Lord" still strikes me as more immediate. Nevertheless, I admit the text does not explicitly state a timeline.
I also think your criticism of my appeal to Acts 2 has some merit.
Peter certainly says: "David is both dead and buried" (Acts 2:29)
and "David is not ascended into the heavens" (Acts 2:34).
The text does not explicitly insert the qualification "as the Messiah."
That qualification is part of an interpretation of Peter's argument, not part of the wording itself.
So if I'm being fair to your position, I would summarize it this way:
The dead are repeatedly described as asleep.
The dead have no thoughts, knowledge, wisdom, or conscious activity.
David had not ascended to heaven.
Believers receive their reward and crowns at Christ's return.
Therefore Philippians 1:23 and 2 Corinthians 5:8 must be understood in a way that harmonizes with those statements.
That's a coherent argument.
My hesitation is simply that I still think Philippians 1:23 and 2 Corinthians 5:8 naturally sound like more than that.
But I would agree that your position is attempting to harmonize all the texts, not ignore some of them, and I think that's an important distinction.
Rev 20 shows fire comes out of heaven to destroy the wicked, and also this entire world is reduced to ashes.
This does not happen until after the 1,000 years of Rev 20.
Picture looking at an entire burning planet from a distance out in space.
It would appear to be a huge lake of fire covering the entire world.
The symbolic imagery of throwing people into this lake of fire is actually the lake of fire being thrown upon the wicked.