John 5:28 Marvel not at this: for the hour is coming, in the which all that are in the graves shall hear his voice,I did the one verse because it's undisputable .Now let's start at the subject which is those who have died
I Thessalonians 4:13 "But I would not have you to be ignorant, brethren, concerning them which are asleep, that ye sorrow not, even as others which have no hope."
Again the subject is those who have died
This concern is over "them which are asleep". The concern is over the loved ones that have died and left them, and their decaying bodies are out there in their grave. Paul is saying for us not to be sorry about those Christians who are dead and gone, for that is the concern of the heathen. The heathen's fear comes from their ignorance of God's word, and His promises. The heathen have no hope, for they believe it's over at the burial.
I Thessalonians 4:14 "For if we believe that Jesus died and rose again, even so them also which sleep in Jesus will God bring with him."
If we believe, as a Christian, that Christ set the example for us; so that we will follow as He did, in dying, and rising again, then "to sleep" is to be dead from the flesh body. The Greek is a simple language, for it's structure allows one to be more precise. The subject in the frame of this verse is; "that ye not be ignorant as to where the dead are." If you're a Christian, you know and believe that Jesus Christ died, was buried, and on the third day arose and came out of the tomb. If you do not believe this, Paul classifies you as ignorant, and heathen [non-believer].
It was on the fortieth day that he ascended back to the Father. When Jesus ascended into heaven, all the souls went with him into heaven also, that had passed on, up to that point in time. The souls of some went to wait for that time of judgment, while others to the glory of God. Those that sleep [are dead] are not out there in a hole in the ground, but all Christians must believe that they arose to be with the Father, just like Christ did also. The dead are with God; all of them. "To be absent from the body [flesh body] is to be present with the Lord." Ecclesiastes 12:7.
I Thessalonians 4:15 "For we say unto you, by the word of our Lord, that we which are alive and remain unto the coming of the Lord shall not prevent in no wise [precede] them which are asleep."
This, Paul states, is not his words, but it is from the Word God gave to him. Where? Ecclesiastes 12:7, that is where it is written.
"We which are alive and remain unto the coming of the Lord," this is our gathering back to Jesus Christ. "Shall not prevent them", would be better translated, "We are not going to precede [go before] them." We can not precede them for a very simple reason; the dead are already there with God. It is the only logical fact that can come from this. If you do not, or will not believe this, then you believe in soul sleep as the heathen do, and the hope and glory Paul is speaking of, for the Christian, and you are ignorant of God's glory. Whether victorious, or sentenced to hell, all the dead are now with the Father, and not in the ground.
John 5:29 And shall come forth; they that have done good, unto the resurrection of life; and they that have done evil, unto the resurrection of damnation.
The whole subject of Matthew 24:29-31 and 1 Thessalonians 4:13-18 is about the coming of the Lord on the last day who will send His angels out to the four corners of the earth to gather together those who are still alive at His coming and those who sleep in the ground.
Genesis 2:7 And the LORD God formed man of the dust of the ground, and breathed into his nostrils the breath of life; and man became a living soul.
Here dust + breath/spirit from God = a living soul. When the flesh dies physically it returns back to the dust of the ground and our spirit is preserved with God for final judgment.
Ecc 12:7 then shall the dust return to the earth as it was: and the spirit shall return unto God who gave it.
This body/flesh dies and deteriorates as it turns back to dust while in the ground. The breath/spirit goes back to God who gave it, Ecc 12:7. The soul which makes up the conscious part of ones being is that of thought, action and emotion, which there is none of that when we die as there is no more brain activity . The spiritual nature of man regarded as immortal and separable from the body/flesh at death and susceptible to happiness or misery in a future state.
We return to the dust of the ground when this physical body dies and our breath/spirit returns to God as we wait for Gods final judgment when Christ returns. Our spirit can never die and is preserved until Gods final judgment on the last day when Christ returns, John 5:28-29; John 6:40.