Paul refers to Christ as resurrected according to the scriptures, the scriptures which attest that Israel is to be resurrected (and not a man). Therefore he believes not in a resurrection of a man but in the renewal of Israel. This is not at all the way you seem to think about Christ. You seem to think Christ is one man. Therefore this statement you have quoted does not suggest what you are saying it does. The teaching of Christ requires that you humble yourself and consider others higher than yourself. I refer you to James, a very short book in the Bible that has many examples. Each person asks for wisdom from God rather than trying to dicker with their neighbor over differences. In the letter I John we read that Love is the commandment given. Love contradicts the idea of agreement through argument. Sometimes honoring God just takes humility and putting up with other people, and this contrasts with the sense of unity people think they have when they focus on saying all the same scripts. It isn't 'Saying the same thing' like Paul means it. Paul suggests agreement through one name, the name Lord Jesus Christ.
He urges them to accomplish this through the name "Lord Jesus Christ," and solving things by dispute and argument is not at all what he wants. The name is something you say, so you all say the same thing. Its a figure of speech. The basic message begins with John the Baptist preaching of the lowering of the high places and raising of valleys (Voice calling in the desert etc), meaning nobody is smarter or better or more honest than another. Jesus proceeds to correct the Pharisees about their fractious ways, which are similar to the ways of JW's, SBC's, RCC's and so forth. Everybody has their little group, so almost nobody is gathering in his name but in our own names. John's emphasis in your quoted passage is through the name "Lord Jesus Christ," but you want to flip it and make it be about reading from scripts. That is a temptation, not a solution nor what 1Corinthians means.
There are twelve apostles chosen from all different backgrounds. They agree in the name Lord Jesus Christ and fellow-ship in that name alone. The narrow path is humility, denial of self, satisfaction in Christ not in speeches. They all say the same name, and that is the same speech. Apostasy happens when someone leaves Christ, not when they have their own thoughts about an interpretation.
Paul has to agree with the canon, so if he's talking about Tanach he's not talking about personal afterlives. His conversation about resurrection is based upon the scriptures, which are about the restoration of Israel. He isn't allowed to change the canon. As an apostle he has to be basing his discussion on that, and in turn we should be able to follow his meaning based upon having that in common with him. In addition, everything that can be known about God can be deduced from observing the world. Paul says this, too. God is not revealed to us through Paul. The gospels writers have the same restriction, so we apply it but not as a litmus test for who is or isn't in Christ.
I am suggesting to you what I feel has become obvious -- that to Paul, Christ is that restoration of Israel, which he refers to as 'The Anointed' (translates to Christ). Everything is about that, and nothing seems to be about an afterlife for individuals. Afterlife appears to be a Greek concept, something that is about the self. Life in Christ is about denying the self. For emphasis: everything written in the New Testament books is subject to the Tanach. If you can't source things from there, then you haven't understood them or there is a problem of some kind. I see your quote from John and I hear your suggestion, but I don't see how it follows from the canon. I think you don't either.
Best not to respond to that comment if we cannot agree on the above.
