What Paul describes in 1Cor 15 is Israel’s national or corporate resurrection, the kind mooted in Ezek 37:1-14 i.e., “the hope of Israel” – read N.T. Wright for example who notes “individualistic” “getting to heaven” notions are more a product of western modernity. The covenantal raising of Israel was occurring in THEIR generation through Christ’s work and that of His firstfruit saints. Paul says…
According to the Greek text where “raises” is ACTUALLY rendered in the PRESENT TENSE this should properly read… “Why should it be thought incredible by you that God is raising the dead?” – egeirei ἐγείρει. Through the gospel of the NEW COVENANT many in Israel and likewise beyond were rising in that day into the new covenant status as servants/children of God, to do the work of God, that was, to secure the redemption of Christ ON BEHALF OF “all Israel” that’s what firstfruits do] which in turn secured the reconciliation of mankind.
Further to this and directly relevant to 1Cor 15… EVERY and I mean “every” instance of “it is raised” is in the PRESENT TENSE, that is, it should read “it is BEING raise” – this was Israel’s covenant resurrection in process in that Ad30-70 which became inclusive of Gentiles… hence the “fleshly” disputes, as previously outline, which Paul was at pains to bear again in them that the dividing wall was gone.
To put it in simple language… Paul’s discussion around “resurrection” was all about STANCE not SUBstance; it was all about covenant renewal unto God not biological renewal unto man. <<<–– read this again and grab a hold of it and it changes everything when you start reading through covenantal instead of biological lens’.
Grasp this and you’ll start to see that Paul’s ‘putting off mortality and putting off immortality’ was the self-same “covenantal language” of ‘putting of the old man’ OC and ‘putting on the new man’ NC, no more, no less. Thus John’s “new creation” IS THE SAME as Paul’s “new creation” simply approached from differing angles… IOW the “new creation” was none other than NEW covenant Israel appointed by God to serve the world.
Again… “the death” Jesus defeated through his Ad30-70 Cross-Parousia event was Adamic death i.e., covenantal/spiritual death, NOT biological death. That Jesus uniquely rose as he did was proof positive that He was Israel’s Messiah as promised by God; the obedient one who was summarily declared Lord of the world beyond Act 2:36].
No-one least of all me denies or rejects Jesus’ self-same bodily resurrection from the grave – he made the same mystical appearances either side of his resurrection in the self-same body. What was totally and fully unique and solely applicable to Jesus’ resurrection, and none other, was the promise of non-decay… simply not true of anyone before or after. Nicodemus for example was dead, fully dead and stinketh much… he was NOT “resuscitated” by resurrected; he however did not possess “the power of an endless life Heb 7:16] as did Jesus.
Again Paidion, in the broader picture of Paul’s treatment of “resurrection” try considering these things through that which the prophets spoke, that is… covenant renewal because THAT’S where Israel’s resurrection “hope” lay and would duly rise.