I am a rare Chrisitan that believes that the Spirit of a person can literally come back as a new baby.
That is the problem. The soul is the part in the body, not the spirit. A spirit is not a person. A spirit does not have a soul. A soul can put on the spirit like the soul puts on the body.
When Adam disobeyed God, he remained the soul, but was given a dead physical body, called mortal. His spirit was taken away that belongs to God, and is the direct image of God.
God is a spirit and those that worship Him must do so in spirit and truth.
The spirit is one's image of God.
The soul is the image of the Holy Spirit as the "software" (the mind) in the "machine" (the body).
The body is the image of the only begotten son.
Yes I am weird like that stating Jesus, after the Cross always existed in eternity, as the Lamb slain from the foundation of the world. That resurrection body has always existed, though born at a certain point within creation itself.
So we were formed in the image of the resurrected Christ, body wise.
We are the soul, and we put on a physical body, and after that the spirit, as a robe of white, although more a bright light as seen physically.
That is why Paul said this corruption puts on incorruption, the body. This mortal puts on immortality, the spirit. This death literally puts on God, the spirit image of God. Only God was described in Scripture as immortal.
Immortality is one of those words like Amil with a prefix meaning without. In this case without death, athanasía "without" and thánatos, "death" The literal word immortal is translated from a different Greek word, which means imperishable, and the same word used first. Aphthartos meaning imperishable thus immortal.
Some interpret the verse to just be repeating the same thing twice. Obviously the soul is twice dead, body and spirit. The body and spirit are not dead, the soul is just lacking the body and spirit in death. Instead God substituted a dead, mortal body, and gave us the Holy Spirit as a substitute for our spirit.
Ephesians 1:13-14
"In whom ye also trusted, after that ye heard the word of truth, the gospel of your salvation: in whom also after that ye believed, ye were sealed with that holy Spirit of promise, Which is the earnest of our inheritance until the redemption of the purchased possession, unto the praise of his glory."
2 Corinthians 1:21-22
"Now he which stablisheth us with you in Christ, and hath anointed us, is God; Who hath also sealed us, and given the earnest of the Spirit in our hearts."
An earnest (a part payment in advance for security) an earnest, earnest-money, a large part of the payment, given in advance as a security that the whole will be paid afterwards.
What Adam lacked and all his descendants was the spirit. The Holy Spirit was sent as earnest to every individual at conception. So no such thing as a spirit sneaking into the conception process from a previous sinner. We will not need the Holy Spirit once we put on our spirit, which is the payment in full of being restored to the image of God as sons of God.
The Holy Spirit is the only spirit given by God. And God is the only engineer in the process of conception.
If one is possesed of a spirit, that would be a demon or devil, which is another soul's spirit that has been demonized. That is the result of a reprobate mind. When the sons of God procreated with Adam's dead corruptible flesh they were all made reprobate, because they all were destroyed. Not all the sons of God procreated with Adam's dead corruptible flesh. Ever heard of the rapture before the Day of Judgment?
There is a reason why only Adam's dead corruptible flesh was allowed to remain and there were sons of God raptured who did not become wicked and reprobate. The same reason why the church will not be on earth during the Millennium. The earth is for procreation. Heaven and Paradise is the place humanity waits until the NHNE. The sons of God did rule as council with God over those humans left on the earth after the Flood. We see that in Job.
The Day of the Lord is only a partial restoration for those on earth. They are not glorified, the putting on of the spirit. They are not in Adam's dead flesh, but the original body Adam had before he disobeyed and physically died. There is no sin nor death because of people sinning as sinners. There will be laws to obey and death is still the penalty for disobedience. But one is placed in Death and removed from the earth. They won't live in death like Adam and his offspring.