I understand...
Maybe these passages make me think that our turn might take some time
1 Corinthians 15:23 But each in his own turn: Christ, the firstfruits; then, when he comes, those who belong to him.
1 Thessalonians 4:15 According to the Lord’s own word, we tell you that we who are still alive, who are left till the coming of the Lord, will certainly not precede those who have fallen asleep.
Well, let's take a look...
Here is the verse from I Corinthians, along with a few preceding verses for context:
20 But now is Christ risen from the dead, and become the firstfruits of them that slept.
21 For since by man came death, by man came also the resurrection of the dead.
22 For as in Adam all die, even so in Christ shall all be made alive.
23 But every man in his own order: Christ the firstfruits; afterward they that are Christ's at his coming.
Paul writes of resurrection, and establishes two resurrection event's: Christ's, which has already taken place; and "they that are Christ's," which Paul notes will take place at his coming. Since the dead in Christ are to be raised "at his coming," if that resurrection is a process of any duration at all, it must be on the order of minutes, not days. The Thessalonian verse notes that there are all these living Christians who are taken up immediately following the resurrected dead, and that event is also described with a sense of happening quickly. Although we who are alive in Christ are certainly waiting for the resurrection of the dead to begin, we see no scriptural reference to living Christians hanging around waiting for the resurrection of the dead to get finished.
Here's the Thessalonian verse along with the verses following, which further clarify the timing:
15 For this we say unto you by the word of the Lord, that we which are alive and remain unto the coming of the Lord shall not prevent them which are asleep.
16 For the Lord himself shall descend from heaven with a shout, with the voice of the archangel, and with the trump of God: and the dead in Christ shall rise first:
17 Then we which are alive and remain shall be caught up together with them in the clouds, to meet the Lord in the air: and so shall we ever be with the Lord.
So, whereas v.15 by itself may lend credibility to the idea that the resurrection of the dead who died in Christ occurs over a long enough time period that those who remain alive in Christ have wait while it happens, once the successive verses get into the mix, it becomes more clear that both things occur fairly quickly, as they describe the events coming in immediate succession. A delay waiting for a prolonged process of raising the dead would have Jesus hovering in the sky the whole time while the living Christians stood around so, again, it would have to be minutes, at most; certainly not days or weeks.
Of course, we've got to include the other Corinthian verse that I cited previously, which says the resurrection of the dead in Christ will happen "in a moment, in the twinkling of an eye, at the last trumpet." That's a pretty definitive description of how quickly it will occur; even it being a process of some minutes seems to stretch the limits of what constitutes "a moment" and "the twinkling of an eye."
If Jesus took an hour, say, or even two, to sweep the Christian dead up to eternal life from out of their resting places around the entire Earth, that'd be plenty quick enough to "fit" with the descriptions given in the two verses you quoted, but when we include the descriptives in I Cor. 15:52, I think we're down to a matter of seconds; MAYBE a minute or two. I think all three verses taken together give us a pretty good picture of a rapid, and quite possibly instantaneous, world-wide resurrection of the dead in Christ.