We disagree on the length of the day of the Lord because I hold to a post-trib rapture of the saints based on what I believe to be a literal reading of the text of Matt. 24, 2 Thess. 1:5-9, 2 Thess. 2, Zechariah 13-14.
On this we disagree by seven years, and I find your proof texts unconvincing because I don't think they address the rapture, but the coming at the end of the tribulation, when he comes all the way to earth. For your position to be correct (and it may be) ... but for your position to be correct, you have to assume that the church is still on the earth during the Tribulation. I don't buy that assumption becasue I think that the church has already been raptured, based on 1 Thess 4-5, 2 Thess 2, the absence of hte church in Rev 4ff, etc.
Just to make the argument from 1 Thess 5, the DOL starts during a time of "peace and safety." That does not comport with a post trib rapture since nothing about the Tribulation can be considered "peace and safety." It is, as you pointed out from Dan 12, Matt 24, etc., a time which has never before been seen on the earth. The coming of 1 Thess 5 cannot be the coming of the posttrib for that reason.
Dan 12 fits righ in the assumption you make, and if you are correct, your position is right, but again, I disagree with the assumptions because I read a few key texts differently than you do.
But let's take a closer look at Dan 12:2 and what it teaches.
Daniel 12:1 "Now at that time Michael, the great prince who stands guard over the sons of your people, will arise. And there will be a time of distress such as never occurred since there was a nation until that time; and at that time your people, everyone who is found written in the book, will be rescued.
Can we agree that this is the Tribulation? I think so. The thing I would point out about this is the people about whom he is talking. This is directed towards "your people." That, in the context of Daniel is national Israel, and the part of national Israel which believes, the 1/3 of Israel that survives (cf. Zech 13, 8,9).
2 "Many of those who sleep in the dust of the ground will awake, these to everlasting life, but the others to disgrace and everlasting contempt.
Here I would point out several things. First, the resurrection spoken of is after the Tribulation. This does not preclude a resurrectio of some sort prior to the Tribulation. It does not even address that question. To use an analogy, I could say "The car is green." And it is. That doesn't mean the other car is green; it doesn't even address that question.
Second, I would point out that "Many" will be raised here, not all. THere are "Many" and then "the others." Those two things are set in opposition. The "many" are raised to life at this resurrection; the rest are raised to death, but the text makes a distinction that they are not raised at this resurrection because only "many" are. Here is an interesting problem for the people who believe in only one resurrection. Dan 12:2 says that "many" will be raised, not "all." If you believe in only one resurrection where "many" are raised, what happens to the rest? Do they stay in the graves forever? I don't think so.
So we have two different resurrections, which fits with Rev 20 in which there is a first resurrection prior to the 1000 years, and a resurrection of "the rest" after the 1000 years. So I don't think this passage teaches a "general resurrection" of everyone at one. Noting the words used actually teach the opposite.
I agree with you about the nature of progressive revelation, though I am not sure I see the problem in exactly the same way. The way I see it is that they believe that every thing in the OT has to be interpreted with teh same clarity of the NT. In other words, since the NT talks of the church, evertying in teh OT must be read in light of that. I disagree.
I think the mistake comes in when we use the phrase "literal interpretation" of the Bible.
Which is more literal? To interpret the day in Matthew 25:31-45 as a 24 hour day or to interpret it as a period of time?
Both are literal and the context will determine which is the correct understanding! One is not more literal than the other!
Lastly, I don't think this is a problem of "literal interpretation." "Day" (hemera or YOM) can have different literal meanings, by which we mean "normal." Literal interpretation is the interpretation of the natural reading of the text. Day can naturally be read in different ways and context is the key. Other things cannot.
I think some try to foist a defininition of "literal interpretation" on dispensationalism in hopes of winning the battle by (false) definitions. I have argued against that here, and will continue to do so.
Thanks for the kind exchange.