It is interesting the Bible separates the soul from the spirit.
1Thes 5:23; Now may the God of peace Himself sanctify you entirely; and may your spirit and soul and body be preserved complete, without blame at the coming of our Lord Jesus Christ.
Heb 4:12; For the word of God is living and active and sharper than any two-edged sword, and piercing as far as the division of soul and spirit, of both joints and marrow, and able to judge the thoughts and intentions of the heart.
1Cor 15:45; So also it is written, "The first MAN, Adam, BECAME A LIVING SOUL." The last Adam became a life-giving spirit.
( It says "it is written", but I'm not sure where this was written in the OT )
Matt 10:28; "Do not fear those who kill the body but are unable to kill the soul; but rather fear Him who is able to destroy both soul and body in hell.
Now while the soul may be able to die ( be destroyed ) it seems the spirit is never destroyed.
It seems some souls will be preserved.
Heb 10:39; But we are not of those who shrink back to destruction, but of those who have faith to the preserving of the soul.
Jas 5:20; let him know that he who turns a sinner from the error of his way will save his soul from death and will cover a multitude of sins.
If we go back to to 1 Cor 15 for a moment.
1Cor 15:44; it is sown a natural body, it is raised a spiritual body. If there is a natural body, there is also a spiritual body.
1Cor 15:45; So also it is written, "The first MAN, Adam, BECAME A LIVING SOUL." The last Adam became a life-giving spirit.
1Cor 15:46; However, the spiritual is not first, but the natural; then the spiritual.
1Cor 15:47; The first man is from the earth, earthy; the second man is from heaven.
1Cor 15:48; As is the earthy, so also are those who are earthy; and as is the heavenly, so also are those who are heavenly.
1Cor 15:49; Just as we have borne the image of the earthy, we will also bear the image of the heavenly.
Verse 45 says Adam was a soul, but Jesus was a life-giving spirit. Then it proceeds to say one is natural from the earth, the other is spiritual from heaven.
Verse 44 says if there was ever a natural body, there will also be a spirit. But just because everyone has a spirit, doesn't mean everyone is "alive" in the Spirit ( uppercase S ).
Your spirit is not the Holy Spirit.
We have a couple of annihilationists here on TalkJesus who seem to believe that if you aren't saved, when you die you simply cease to exist.
The Bible doesn't seem to support that.
John 5:28; "Do not marvel at this; for an hour is coming, in which all who are in the tombs will hear His voice,
John 5:29; and will come forth; those who did the good deeds to a resurrection of life, those who committed the evil deeds to a resurrection of judgment.
Acts 24:15; having a hope in God, which these men cherish themselves, that there shall certainly be a resurrection of both the righteous and the wicked.
Even the wicked are resurrected. They will face the judgment. But even then they won't "die". ( as in cease to exist )
Rev 14:9; Then another angel, a third one, followed them, saying with a loud voice, "If anyone worships the beast and his image, and receives a mark on his forehead or on his hand,
Rev 14:10; he also will drink of the wine of the wrath of God, which is mixed in full strength in the cup of His anger; and he will be tormented with fire and brimstone in the presence of the holy angels and in the presence of the Lamb.
Rev 14:11; "And the smoke of their torment goes up forever and ever; they have no rest day and night, those who worship the beast and his image, and whoever receives the mark of his name."
Rev 20:10; And the devil who deceived them was thrown into the lake of fire and brimstone, where the beast and the false prophet are also; and they will be tormented day and night forever and ever
Matt 25:46; "These will go away into eternal punishment, but the righteous into eternal life."
Mark 9:43; "If your hand causes you to stumble, cut it off; it is better for you to enter life crippled, than, having your two hands, to go into hell, into the unquenchable fire
Mark 9:48; where THEIR WORM DOES NOT DIE, AND THE FIRE IS NOT QUENCHED.
