Bob,
If I might chime in here, and not to butt in, Michelle, keep on posting, imo!
First, along with what Michelle said, it seems you still mostly believe in 'eternal torment' and/or 'eternal separation from God'. Not that I want to debate you about it, though. But consider the following....
You wrote:Apostle Paul said something interesting in I Cor.5:5 for example with regard to the "immoral brother"; "I have decided to deliver such a one over to Satan for the destruction of the flesh, that his spirit may be saved in the day of the Lord Jesus. Here a distinction is being made between the 'destruction of the flesh' and a presevation of the man's spirit unto the day of Jesus.
I think Paul used terminology he knew the Corinthians would readily understand. Namely, he used the Greek ideas of matter as over against spirit. Or put another way, the material body or "flesh" as compared to the "inner spirit man".
Paul didn't teach that it is our spirits that will be saved. Rather, in 1 Cor 15 he taught and spelled out that believers will be resurrected with real physical bodies, though they will be animated by the Spirit.
When Paul said this man's flesh would or might be destroyed, I think his meaning was "so that he will stop doing the deeds of the [his] flesh". This man was habitually doing what a natural person "in the flesh" (non-Christian) does, cf. Romans 8:4-6. In 1 Cor 5:1, it says the man "has" his father's wife in the present tense. Iow, he was (habitually) "living in [this particular] sin." On an interesting note, it doesn't appear this man's father and stepmother (or mother?) were ever in the church because we know Paul! "He would have had it out" with them too!
When Paul said "so his spirit may be saved" I think he simply meant that this man would consider his misdeed (sin) of fornication/adultery/incest and repent, thereby having the Spirit of God indwelling him (cf. especially, Ro 8:11 below) both "now" upon the condition of his repentance, and at the future Day of the Lord Jesus Christ, His second coming.
Ro 8 (NKJV)
9 But you are not in the flesh but in the Spirit, if indeed the Spirit of God dwells in you. Now if anyone does not have the Spirit of Christ, he is not His. 10 And if Christ is in you, the body is dead because of sin, but the Spirit is life because of righteousness. 11 But if the Spirit of Him who raised Jesus from the dead dwells in you, He who raised Christ from the dead will also give life to your mortal bodies through His Spirit who dwells in you.
This man who was kicked out of the church may have had the Spirit of God at one time. He may have been a believer. We don't know. But whatever the case may have been on that, Paul kicked him out of the church because he was doing something that Christians can't do: live according to the flesh. In verse 10, above, "the body is dead because of sin" means the same thing as "the destruction of the [guy's] flesh". Christians aren't under the 'reign' of what our natural bodies may want or want to do. Why not? Because we no longer obey fleshly desires of our natural bodies as we have the Spirit of God in us. This man, after being excommunicated, still had the chance to keep living according to his flesh or repent in order that the misdeeds of his flesh would, in effect, be destroyed. He'd still have his same body. But his fleshly desires being carried out, as with all Christians, would no longer have the 'reign' over him. Paul talks about this also in Ro 6.
This makes sense to me, anyway.
You also wrote:Also in I John 5:16, what is the sin that leads to death? What death? Death of the flesh or body? Death of the spirit? Murder commited in the realm of the flesh could be a sin that leads to death under Gen 9:6, or even Pauls comment in I Cor 5:5, and may require a "giving over" of the person to destruction of the "flesh",i.e, execution under civil law.
Some think the sin that leads to death is blasphemy of the Holy Spirit which Jesus said would never be forgiven.
But as to what death? Once more, the Jews (Jesus and the NT) didn't believe the body is a separate thing from the spirit. So I don't see it being a question of a separate spiritual death and another physical death.
I doubt Paul meant "giving over" this man to the civil authorities. Reason being is, Paul always talks about the church judging itself! In fact, this was what he was doing when he excommunicated the man. Also, I'm not sure what the Roman laws were on the sins this guy committed. If the woman was his step-mother (which we don't know but most scholars think she was); I don't know if that was illegal or not. If there was consent, they may have allowed it, I don't know. We don't know if his father permitted it either. In those Corinthian temples just about 'anything went' in terms of sexual immorality. We do know, however, that what was happening between these two people was considered to be very unusual or "not mentioned" by even the pagans (1 Cor 5:1); if it happened it was 'in the closet' by even the pagan standards of morality.
Lastly, you wrote:But it does not necessarliy follow his spirit will suffer God's destruction or annihilation especially if he is a believer. Just because we are 'saved from the wrath to come' by being in Jesus doesn't of course mean that when we sin even as believers, we escape the "sword of God's justice" in this life or age. If we steal, or murder, we will still suffer under God's principal law of 'sowing and reaping'. When we repent, there is still forgiveness with God. But God never delivers us from sins effects committed in this life. We will always reap what we sow in this life, whether in Jesus or not.
Paul taught our whole selves will be resurrected physically but sometimes used Greek terms to express 'our whole selves' like: "body, soul, spirit, mind". All of we Christians with every 'component' of our beings will be finally and fully saved when Jesus comes back. Every 'part' of a convicted murderer who got saved before being sentenced to death will be saved though he 'paid the civil authorities' for his murder. All of us and every 'thing' we are will be saved. And following in kind, every 'part, thing, or component' of the unsaved won't be saved.
Make sense, Bob? Does to me but I'm not the best with words sometimes.
Rick