The Apostle Paul
2 Corinthians 12:17ESV·traditional attribution

Did I take advantage of you through any of those whom I sent to you?

Matthew Henry Presbyterian @wholebiblehenry

In these verses the apostle addresses himself to the Corinthians two ways: - I. He blames them for what was faulty in them; namely, that they had not stood up in his defence as they ought to have done, and so made it the more needful for him to insist so much on his own vindication.

Commenting on 2 Corinthians 12:11-21

John Gill Reformed Baptist @doctorgill

Again, think you that we excuse ourselves to you?.... The apostle would not have the Corinthians imagine, that by what he had said once and again in this epistle, he meant to excuse himself from coming to them, for he really and sincerely intended it; or that by this long defence of himself against the false apostles, he designed so much an apology for himself...

Albert Barnes Presbyterian @notesbybarnes

Verse 17. Did I make a gain, etc. In refuting this slander, Paul appeals boldly to the facts, and to what they knew. "Name the man, says he, who has thus defrauded you under my instructions. If the charge is well-founded, let him be specified, and let the mode in which it was done be distinctly stated." The phrase "make a gain," (from πλεονεκτεω,) means...