Roy
You said,
Behold, I tell you a mystery: we shall not all sleep, but we shall all be changed-in a moment, in the twinkling of an eye, at the last trumpet. For the trumpet will sound, and the dead will be raised incorruptable, and we shall be changed. For this corruptable must put on incorruption, and this mortal must put on immortallity." [1 Cor. 15.51-53]. Please read all of 1 Cor. 15.
When the Lord returns this will certainly happen. But when He returns it will be the end of time.
We have to look at all the verses that speak of this including Matthew 24:
Matthew 24:29 Immediately after the tribulation of those days shall the sun be darkened, and the moon shall not give her light, and the stars shall fall from heaven, and the powers of the heavens shall be shaken:
Matthew 24:30 And then shall appear the sign of the Son of man in heaven: and then shall all the tribes of the earth mourn, and they shall see the Son of man coming in the clouds of heaven with power and great glory.
Pay attention to verse 29. The sun will go dark, the moon will no longer give light, and the stars will fall from the sky. God put them up there so we can keep track of time.
Genesis 1:4 And God saw the light, that it was good: and God divided the light from the darkness.
Genesis 1:5 And God called the light Day, and the darkness he called Night. And the evening and the morning were the first day.
Genesis 1:14 And God said, Let there be lights in the firmament of the heaven to divide the day from the night; and let them be for signs, and for seasons, and for days, and years:
Therefore when He removes them we are in eternity. So when the Lord returns it is Judgment Day. There is no way to have 1,000 years without timepieces.
Lets go back to Mat. 24 and look at verse 3.
Matthew 24:3 And as he sat upon the mount of Olives, the disciples came unto him privately, saying, Tell us, when shall these things be? and what shall be the sign of thy coming, and of the end of the world?
Matthew 24:14 And this gospel of the kingdom shall be preached in all the world for a witness unto all nations; and then shall the end come.
His coming and the end of the world are tied together.
Rev. 20.4 is BEFORE His return. They are disembodied because they are in heaven. When a believer is absent from the body they are present with the Lord.
We have a physical body and we have a spiritual body I’m sure you know that.
And when the Lord returns we get a new glorified physical body.
Before we are saved we are spiritually dead.
Ephesians 2:5 Even when we were dead in sins, hath quickened us together with Christ, (by grace ye are saved;)
Ephesians 2:1 ¶ And you hath he quickened, who were dead in trespasses and sins;
When we become saved it is because God has resurrected our dead spiritual body. That is why it is called the first resurrection in that is spoken of.
Revelation 20:5 But the rest of the dead lived not again until the thousand years were finished. This is the first resurrection.
The 1,000 years is not a literal 1,000 years the key to understanding this is:
2 Peter 3:8 But, beloved, be not ignorant of this one thing, that one day is with the Lord as a thousand years, and a thousand years as one day.
There is also more to this, God Bless