Oh yes it is, it is completely devestating to your whole false doctrine. It proves that the spirit of man was formerly in a "dead" state but not a non-existent or unconscious state as it is the "dead" spirit that is responsible for the active rebellion against God which is attributed to being in spiritual UNION with Satan ("in them") , thus SPIRITUALLY SEPARATED from God and it is that EXISTING spirit that later is "quickened....saved.....created IN Christ" (vv.1,5,8,10) thus brought into SPIRITUAL UNION with God the source of life as He alone is the true source of life and he alone is immortal by nature. Hence, neither death or life can be restricted to your definitions. Yes, I do consider it cased closed as your position is not compatible with the truths stated in either passage and not consistent with the human nature.
I like your confidence. Would that we could all self-adjudicate! But that's not how public dialogue works. In fact the more someone resorts to repeating themselves and using ALL CAPS and reckoning their arguments "completely devastating," the more I have to wonder whether those things are really having the desired effect.
I entirely accept the notion of being spiritually separated from God. But the Bible is not a Gnostic text, so the spiritualization of every point of redemption needs to be reigned in. Christ took on the form of a human being so that He could live obediently to the point of death, even death on a cross. Any discussion of the wages of sin, death, needs also to consider the orthodox view that Christ actually died for our sins (and not just spiritually, before He died by crucifixion). That is, using His own syntax, He "
laid down his life" (which, by the way, no Bible scholar thinks this means a "spiritual life," as if that were the default biblical definition).
Meanwhile, we eagerly await "
our adoption to sonship, the redemption of our bodies. For in this hope we are saved." (Rom 8:23-34). Yes, we humans are embodied creatures, and our bodies will be quickened at the completion of the salvation process. As Philippians 3:20-21 puts it, "
the Lord Jesus Christ... will transform our lowly body to be like his glorious body." The resurrection body of believers is critically important to understand and emphasize, given that it is to be immortalized in a way that overcomes death (cf. 1 Cor 15:53-54, "
For this perishable body must put on the imperishable, and this mortal body must put on immortality. When the perishable puts on the imperishable, and the mortal puts on immortality, then shall come to pass the saying that is written: “Death is swallowed up in victory.”").
What is said positively of the resurrection bodies of the righteous cannot be said of the unrighteous, and therefore the unsaved are resurrected mortal, and await their second death. Whatever we say about death in this context must comport with text like 2 Timothy 1:9, which say that Jesus "
destroyed death and has brought life and immortality to light through the gospel." He did this through His own death on the cross, as it says in Hebrews 2:14-15—
"
Since therefore the children share in flesh and blood, he himself likewise partook of the same things, that through death he might destroy the one who has the power of death, that is, the devil, and deliver all those who through fear of death were subject to lifelong slavery."
I think most people can parse the logic there. There's no sign of "spiritual death." Ordinary non-Christians have a fear of death, and Jesus comes in physical form precisely in order to die like humans die, in turn to conquer death for those He redeems. His victory over sin and death is actually a victory over the grave, which is why His Resurrection is so profound. As Paul says in Romans 6, "
death no longer had dominion over him," and that is why He, "
being raised from the dead, will never die again." Accordingly, through baptism into "
a death like his," we will also be "
united with him in a resurrection like his." The basic scheme of salvation is clear: Jesus saves us not merely from a spiritual "death," but also, and principally, from death itself, via a resurrection to never-dying (literally the meaning of the term "immortality"). Your arguments haven't so much as begun to engage with the important and central usages of basic terms like life and death. Unfortunately, the opportunity to do so on this forum is shortly itself to die.