Paul states that the resurrection of the dead and our changing takes place in a twinkling of an eye.
But you are saying it will be at least seven years before all are resurrected and changed.
Don't you see how stupid that sounds?
That is just ignoring what Scripture teaches because it destroys the foundation your belief is built on.
Paul said, "Behold,
I shew you a mystery..." (this is something that had heretofore not as yet been disclosed, but which he has now been tasked with disclosing... thus, what he is about to say is not exactly the same thing that Martha and ALL of the OT saints already WELL-KNEW [note: they had
not been promised "RAPTURE," see, only "RESURRECTION ['
to stand again on the earth']")
...then he proceeds to get into the details of just what he has been tasked with disclosing...
in particular:
--"
THIS corruptible" (speaking of those members of "the Church WHICH IS HIS BODY" [(also) the "
we" of the text] who will have
DIED up to that point-in-time being referred to); and
--"
THIS mortal (speaking of the "
we which are
ALIVE and remain unto..." [same...])
... so this is speaking of a very specific group, and at a very specific point-in-time, regarding details that had heretofore not as yet been disclosed (unlike what Martha spoke of ['resurrection'] and WELL-KNEW about, in John 11:24).
[that's just for starters, on this point... this text being about "
WE" shall not all sleep, but "
WE" shall all be changed... (Paul has been tasked with disclosing "doctrinal truths" pertaining specifically
to/for/about "the Church
WHICH IS HIS BODY" [Eph1:20-23
WHEN (as to its existence)])]