So what does resurrection power look like on earth? On the outside it looks like death. It looks like weakness and groaning. It looks like loss, foolishness and failure. It looks like a hopeless cause, a problem that never goes away, a wasted effort. Indeed, it looks like a man who labors in vain. But even as “our outward nature is wasting away,” Paul believed “our inner nature is being renewed day by day” (2 Cor 4:16). “Because we look not at what can be seen but at what cannot be seen,” believers operate with an abiding hope that God is at work in our lives in mysterious ways. Our transformation is incomplete. Resurrection growth is hard to track. It isn’t quantifiable. You can’t point to a measuring stick and say, “See how much I’ve grown this past year?” But that doesn’t stop us from counting up our days, taking inventory of our lives and wondering “out loud” like Paul whether our life’s work was in vain. It’s the human condition; we all want to know if we’ve made a mark on things, left an indelible impression, found immortality. That’s because we have no doubts about our mortality. We know we’re going to die. What we don’t know is whether we have truly lived. Thus the nagging speculation, how’s it going to end? is eclipsed by the more troubling question, did my life matter at all?
At times Paul acted like that question wouldn’t be answered until the parousia of Christ. He envisioned the day when he would be vindicated, when all doubts would be put to rest, when every question would be answered—the day he presented all of his converts to Christ as blameless children of Abraham. Then and only then would Paul’s boast be legitimized: “For what is our hope or joy or crown of boasting before our Lord Jesus at his coming? Is it not you?” (1 Thess 2:19). Paul longed for the day when he would stand before Christ, with every Gentile convert standing behind him as an eternal witness to the truth of the gospel he preached. (By the way, I love Paul’s vision—that one day I will stand with all the Gentiles who have believed in Jesus Christ. A vast multitude behind the apostle to the Gentiles, we will all celebrate that his work was not in vain.) At the same time, Paul also spoke of a confidence, a boldness of resurrection faith that gave him courage to face every trial with a sense of divine blessing (1 Thess 2:1-2). Regardless of how things looked on the outside—his body wasting away, his enemies hindering his mission, his converts ignoring his instructions—Paul was convinced he was experiencing the resurrection of Christ on the inside. A renewed mind. An encouraged heart. A satisfied soul. An undefeatable Spirit. Indeed, only the glorious resurrection of Christ could explain how a man could undergo such a radical transformation from the inside out (2 Cor 3:4-4:1).
Rodney Reeves, Spirituality According to Paul: Imitating the Apostle of Christ, 172-173.