Here is how I summarized the argument in this portion of the epistle:
But here’s the good news. Paul has trafficked in the hypothetical for the purposes of his logical argument in these last eight verses. He has made his point. Denying the reality bodily resurrection results in logically necessary consequences of the most catastrophic kinds – false gospel, futile preaching and faith, fraudulent witness, flourishing sin, forever death, and forlorn-to-the-utmost believers. But none of that is the case! Look at v. 20. But in fact Christ has been raised from the dead, the firstfruits of those who have fallen asleep. So we may rightly, and I am indebted to John Piper for this insight, reverse the implications of all six of Paul’s logically necessary consequences. We have no false gospel but a true one with Christ raised from the dead. We have no futile preaching and faith it produces, but full and worthwhile-to-the-max preaching and faith with Christ raised from the dead. We have no fraudulent witness but truthful witness with Christ raised from the dead. We have no flourishing sin but rather fully forgiven sin before God and resurrection power to fight its remaining influences until one day we are completely delivered from this flesh with Christ risen from the dead. We have no forever death but everlasting life and hope of being reunited with all those who have fallen asleep before us with Christ risen from the dead. And we have no forlorn, misplaced, pitiable hope but rather an enviable, blessed-above-all-others kind of hope, even if it costs us our lives, with Christ risen from the dead.
Blessed Easter to all.
We are anything but forlorn! He is risen. He is risen indeed!