Separating body, spirit, soul has migrated from heathenism. For Christians to believe that it hasn't they must resort to all sorts of scriptural gymnastics and cobble a view together which the scriptures in its straight testimony does not support.
The quoted text by charity is clear...it doesn't need fiddling with to support a different view.
So the question arises....do we embrace this clearly defined explanation of Paul's in 1 Corinthians 15 or do we favour the preconceived ideas whose birth originates in the pagan theories thereby wrestling with the straight testimony of scripture?
Nope, the "heathens" stole God’s creation and plan for things. Satan fed them thoughts pre-conditioning humanity to a false view of the truth. Why blame the Word of God on a false standard? Job was a righteous man and knew the truth, until Satan took all from him? Nope, Job remained a righteous man, and knew the truth. But instead of blaming God, he rationalized his condition on human terms and conditions. So no one can give Satan any credit for coming up with the terms. One can know when a "heathen" speaks and when a believer speaks, even if they use the same terms.
The spirit of humanity was separated when Adam disobeyed. It was part of the immediate death sentence. The other death sentence was the physical body. I am not sure if any one fully understands, "the soul that sins, will die." Sure it dies twice. Once to the spirit, and once to the body. So the victory over death is not just a new physical body, but a new spiritual body. And unclothed bodies without physical and spiritual property is a ghost. That is what Jesus gave up, that is how the OT saints appeared as when Jesus died on the Cross. It is not a dismembered spirit. It is a ghost without body and spirit. Or soul that is without either physical and spiritual body.
Paul was correct that even the ghost has not been given victory over death. Revelation 6 has the answer. It is all connected to the Atonement and full restoration of Adam's condition. 6000 years or less (because of the elects sake, those days were shortened. Matthew 24:22) of the punishment of toil/work at the sweat of the brow. So the full restoration depended on time. It was there in Revelation, but a mystery in the brand/curse of the number 666. God did not disclose to the newly forming church it would have to wait 2000 years. Satan was prepared if indeed the converted theologians were just smokescreens inserting enough truth, but too much other baggage. The latest being the corruption of the rapture, the search for a non-existent Antichrist, and this crazy search to attach a non-descript number to some human. This messed with Revelation 13. There is just Satan and a false prophet. The third person is the image itself a false version of the first and second Adam. The complete destruction of God’s plan. But God is going to finish His plan first.
Also God is still not willing that any should Perish. We still do not know when the church age will be completed. Revelation 6:9-11 is the restoration of Adam's disobedience. Those in Christ will receive their spiritual and physical body at the same time and in conjunction with the immediate opening of the 6th seal, because that was Paul's promise. But that is still only the part of the church. The church did cover all the OT saints because those were delivered from death first. Those first fruits, from Adam to Abraham to Christ. That was the fulfillment of all OT promises to those in Christ throughout the OT. It took the sting of death out of all those who died in Christ from the Cross until now. Now after the 7th seal, all of Adam's restoration will be complete, for all those who chose by faith to accept the Atonement.
There is also going to be a restoration for Abraham and Jacob's sake. There is still that last enemy that has to be conquered. The direct enemy of Israel and the nations Satan himself. If the church repents and does it's job, not in one world governmental ecumenicallism, but the original old foot and word of mouth spread of the Gospel itself. No longer doctrine, theology and the heavy burden of a harlot church bogged down in liturgy and works based deeds.
It is getting off one's high horse of pride and self righteousness, and in repentance putting aside the cares of this world and telling all of sin and the need to repent. The message of Jonah to a dead and dying world. Especially since there is going to be one last attack by death in the 4th seal where over 2 billion people die. Revelation 6:8:
"I looked, and there in front of me was a pallid, sickly-looking horse. Its rider’s name was Death, and Sh’ol followed behind him. They were given authority to kill one-quarter of the world by war, by famine, by plagues and with the wild animals of the earth.
Yes, we do have to go through one more valley of the shadow of death. We have to face death without a sting, but face it we will. Not being prepared is very foolish and self centered. Only the Holy Spirit and his guidance will get us through. Then for the church the grave will be swallowed up in victory. Not an escape, but a full restoration.