2 Corinthians 11:10 As the truth of Christ is in me, no man shall stop me of this boasting in the regions of Achaia.

The Roman province of Achaia covered the areas of southern Greece. It was here that the Corinthian church came into existence. The Apostle Paul was forward in testifying of the gospel work he has established there through the preaching of the gospel. Why was he bold in “boasting” of the gospel work established? Not for his glory but to defend his apostleship and the genuine work of the gospel.

MacDonald observed well, “He is doubtless referring here to his critics who used his abstinence as an argument against him. They said he realized he was not a true apostle, and that is why he did not insist on being supported by the Christians (1 Cor. 9). In spite of the charges of his critics, he will continue to boast that he served the Corinthians without taking any money from them.”