On Judgement day all of the dead who are in Christ shall arise. 1 Thessalonians 4:16. Jesus Himself says that all who are in the graves shall hear His voice (John 5:28). The faithful who are in their graves shall be resurrected unto eternal life. (John 5:29).

Moreover, at the last trump, the resurrected shall be raised with an incorruptible body and those who are alive at that moment receive it in the twinkling of an eye (1 Corinthians 15:52-53). This is the moment at which we receive our bodies which will never again die. It is with these bodies that the saved enter into heaven with, while the lost go to their punishment.

Your belief that the saved are in heaven right now places them there before they receive the final day of judgment presents some problems.

1) Scripture says that the dead are "sleeping" which means resting and awaiting resurrection. If they are in heaven already, then why would would they be awaiting resurrection. What would be the purpose?

2) Scripture says that we will be changed, including the dead at the resurrection. If the saved are in heaven, then they had to have received this "change" whatever it is, prior to entry there. If they are in heaven now, for what purpose would they be arisen and then changed to their incorruptible body? Should they not already have this if they are in heaven?

3) And scripture says, as I already pointed out, that those in the graves shall be (future tense) resurrected to eternal life. If they are in heaven, then why would they be resurrected to something they already have?

If I may suggest, why don't consider this?

The dead all go to place called "Hades" in our language. This word means the "place of departed souls". This is where we find the rich man and Lazarus and where we find Jesus Christ after his crucifixion. Jesus called this place paradise. he told the thief that TODAY you will be WITH ME in paradise. Jesus was in the Hadean realm for three days. So it obvious that there is a place of paradise in Hades. There has to be, or else there was something very wrong with what Jesus said.

Jesus Christ was the firstborn from the dead, never to die again. He received his eternal body. He has it now.

There are two sides to the Hadean realm, We have the paradise side which we know Jesus and the thief and Lazarus went to. Now in scripture we have the name of the side the rich man was in found in the original Greek which is also translated "Hell" in the KJV. Look in:

2 Peter 2:4
For if God spared not the angels that sinned, but cast them down to hell , and delivered them into chains of darkness, to be reserved unto judgment;

The Greek word for "Hell" in this instance is "Tartaroo" from which we have the english word "Tartarus" today. This word means "deepest abyss of Hades"

The dead in Christ go to a place of rest and paradise where they await the resurrection in Hades.
The dead outside of Christ go to a place of torment in Hades.
When Jesus returns, all the dead in Hades shall be resurrected and shall receive their eternal destiny at that time.

In Revelation we have a picture of the final resurrection:

Revelation 20:13-15
13 And the sea gave up the dead which were in it; and death and hell delivered up the dead which were in them: and they were judged every man according to their works.
14 And death and hell were cast into the lake of fire. This is the second death .
15 And whosoever was not found written in the book of life was cast into the lake of fire.
KJV

Hell in verse 13 is from the Greek word Hades. Reading on in the context we see that when Hades gives up its dead, those who were not found in the book of life shall be cast into the lake of fire at that time. Obvioulsy there were some coming from Hades that would be found in the book of life.

Given the body of evidence we have, I think this is a much more accurate way of understanding how things will be at the judgement. I do not think the saved are in heaven right now with Jesus Christ. That is yet to come when the dead are all raised together in the sight of the condemned where all will bow their knees to God and the saved will be glorified after which everybody then goes to their eternal rewards.

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"My little children, let us not love in word, neither in tongue; but in deed and in truth. And hereby we know that we are of the truth, and shall assure our hearts before him." 1 John 3:18-19

The church of Christ at Granby