Shared ground
Paul looks back on his “boasting” and judges it as “foolish,” not because everything he said was false, but because self-praise is not how he prefers to argue. He says the Corinthians pushed him into it by failing to stand up for him when others questioned his standing.
He then holds two claims together: he is “not behind” the “very best apostles,” yet he is “nothing.” The first is a claim about his legitimacy and status as a true apostle; the second refuses the idea that his personal impressiveness is the foundation of that legitimacy.
Paul also appeals to observable evidence from his time in Corinth: the “signs of an apostle” happened “among you,” marked by sustained endurance, and expressed through “signs, wonders, and mighty works” (signs). Finally, he argues the Corinthians were not treated worse than other churches; the only “disadvantage” he can name is that he did not take their money, and his “forgive me” line is meant to sting.
Where interpretation differs (only where needed)
Who are the “very best apostles”? Some read this as Paul referring to the original Jerusalem apostles (or at least widely recognized leading apostles). Others think it is mainly his sarcastic label for the rival teachers he has been answering, echoing his earlier language about “super-apostles.” The first reading stresses Paul’s equality with the most recognized leaders; the second stresses his critique of inflated claims.
What are “the signs of an apostle”? Many take Paul’s list as including miraculous works as key public markers of apostolic ministry. Others agree miracles are included but argue Paul’s emphasis falls on the whole package: endurance (“all patience”) plus powerful works, as a combined public trace of a true apostolic mission rather than a standalone miracle-test.
How should “I am nothing” be taken? Some hear straightforward humility: Paul is not inherently impressive apart from God’s work. Others hear a deliberate rhetorical move: he lowers himself to expose how misguided the Corinthians’ status-based comparisons have become.
How ironic is “Forgive me this wrong”? Most read it as sharp irony. A minority reading treats it more literally as Paul acknowledging that refusing support may have unintentionally offended them, though even then the sentence still functions as a critique of their values.
Why the disagreement exists
Paul’s wording compresses several aims at once: defending his legitimacy, refusing status-games, and confronting the Corinthians’ judgment standards. Because he uses irony and compares himself with unnamed “top” figures, interpreters differ on whether his references point primarily to recognized apostles, to rival missionaries, or to both. Likewise, “signs of an apostle” can be read either as a tight label for miracles or as a broader description that includes endurance as the setting in which the works occurred.
What this passage clearly contributes
Explicitly, the passage contributes Paul’s claim that the Corinthians themselves witnessed evidence of his apostolic ministry, and that their failure to commend him forced him into unwanted self-defense. It also ties apostolic credibility, in this case, to what happened “among” a community over time (endurance and powerful works), not merely to polished speech or reputation. By ending with the money question, it highlights how financial support and patronage could distort judgments about spiritual authority in Corinth (see 2 Corinthians 12:11–12:13).