Occam's Razor is a logical/philosophical principle popularized by an otherwise obscure Scholastic theologian, Willem of Ockham. (I believe that is the majority spelling, anyway.) And it's not about "choosing the obvious." Rather, it is about finding and selecting the simplest explanation for a problem having many features.
The "obvious" way to read Revelation 20, according to your level of discernment, at least, is to read the first resurrection as a bodily (material) resurrection just like the second resurrection.
But the materialistic interpretation of the first resurrection in Revelation 20 forces you to jump through a lot of hoops to set aside what would certainly appear to be the obvious implications of John 5:25-29 and 2 Peter 3.
Besides, your interpretation doesn't mesh in a very satisfactory way with the two-resurrection form which we do see in John 5:25 (spiritual) and 5:28-29 (carnal). By the same token, your interpretation doesn't exactly mesh with what Paul says in Ephesians 1 and 2, either!
My intepretation fits ALL of these points--John 5, 2 Peter 3 and Ephesians 1-2. And my interpretation is SIMPLE.
According to Occam's Razor, my interpretation is to be preferred.
(Actually, I was just being polite to ksen when I cited Occam's Razor. I actually maintain that John 5 and 2 Peter 3:9 completely rule out the premill position.)
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The stumbling block for many people is that they equate a premillennial belief system with saving faith. Many premills can't abandon their premill system--because they would have no faith at all if they did.
Those folks on their way to hell, IMO. Remember: The Pharisees were folks who were inclined to take Christ literally when they shouldn't have.
(Notice that I didn't say all premills are lost. I just maintain that premillennialism is often substituted for the gospel by careless pastors.)
I am referring to the odd fact that you can't seem to come around to the amill position--no matter how simple and elegant it is.
How does my very simple theory account for that? Gosh, it automatically accounts for it. As I read the text of Revelation 20, I conclude that it was encrypted to cause you to stumble, xzins.