I don't doubt or deny the immortal bodily resurrection that saints shall inherit when Christ comes again. What you don't seem to understand is the FACT that the Kingdom of God in heaven that Christ ushered in to man is not the physical Kingdom that shall be on the new earth when Christ comes again. NO! The Kingdom of God in heaven NOW is a spiritual Kingdom that flesh and blood shall not inherit. Acknowledging the spiritual Kingdom of God is problematic for some who believe that eternal life we inherit when we are born again cannot come until we are physically resurrected. That flies in the face of so many verses and passages of Scripture telling us that from the moment we believe in/on Christ and are born again of His Spirit the life we receive is ETERNAL, forever, never ending SPIRITUAL life in the Kingdom of God in heaven. I've already inherited, along with every other born again believer in Christ the spiritual Kingdom of God in heaven through the Spirit of Christ within. That's why we already possess eternal life in Him that can never be lost and never die.
I get where you are coming from, except you are conflating some of these things.
Until the last trump sounds first, in the meantime---shall never die is not literally relevant yet. That only makes sense when this mortal puts on immortality. Even the saved that have already died still have to put on bodily immortality at the last trump. In order for them to never die they have to bodily live again first.
But that doesn't mean something silly, such as Amil and NOSAS, and one having part in the first resurrection, then the next minute no longer having part in it. That the saved that have already died, that they might somehow lose their bodily immortality before they are bodily raised. The saved that have already died are indeed never going to die. No one is disputing that. There is a process, though. That it is meaning as of the last trump since that is when all of the saved, including those that have already died, and those that are still physically alive at the time, put on bodily immortality. Which then equals none of these shall die. Because they will not be cast into the LOF instead, which equals--- to die.
1 Corinthians 15:42 So also is the resurrection of the dead. It is sown in corruption; it is raised in incorruption:
43 It is sown in dishonour; it is raised in glory: it is sown in weakness; it is raised in power:
44 It is sown a natural body; it is raised a spiritual body. There is a natural body, and there is a spiritual body.
Can you not see what this plainly says? Verse 43 & 44 clearly say, pertaining to the resurrection of the dead--it is raised in glory--it is raised in power--it is raised a spiritual body---there is a spiritual body.
Notice that it says a spiritual body. Not to be confused with disembodiment. A body and disembodiment are not remotely the same thing. Everyone should already know that. Therefore, verses 42-44 are meaning during the last trump, verses 51-57, not something already applicable to the here and now spiritually.
Amil theology has caused you to conflate some of these things. I'm not saying all Amils conflate some of these things. But you certainly do, and that it is Amil theology that brought you to this point since it couldn't have been Premil theology that did, for example. Don't blame that on Premil theology. I'm Premil and I understand 1 Corinthians 15:42-57 just fine.
Scripture interprets Scripture.
1 Corinthians 15:42 So also is the resurrection of the dead. It is sown in corruption;
it is raised in incorruption :
1 Corinthians 15:52 In a moment, in the twinkling of an eye, at the last trump: for the trumpet shall sound, and the dead shall be raised incorruptible, and we shall be changed.
53 For this corruptible
must put on incorruption , and this mortal must put on immortality.
54
So when this corruptible shall have put on incorruption , and this mortal shall have put on immortality,
then shall be brought to pass the saying that is written, Death is swallowed up in victory .
Apparently, you have death already being swallowed up in victory before the last trump even sounds first. And if so, that means you are disregarding the 'when' and 'then' in verse 54.
Revelation 1:18 I am he that liveth, and was dead; and, behold, I am alive for evermore, Amen; and have the keys of hell and of death.
That's the chronology. First, one is bodily alive, then they are bodily dead(and was dead), then they are bodily alive again( I am alive for evermore) = shall never die. But not before one is bodily dead first. But after one is bodily dead then raised back to bodily life = shall never die. Amil is notorious for doing things in a different order than Christ did. For example. Christ overcame first, then He was rewarded with sitting in a throne. Amils sit in thrones, thus are rewarded first, before they even prove they have fully overcome, since there is such a thing as NOSAS in the meantime. IOW, NOSAS contradicts have overcome. Where Amil combined with NOSAS leads to absurd nonsense, that one is reigning on thrones with Christ one minute, then the next minute they no longer are. This utter absurdity could not possibly occur per Premil.