Did I make a gain of you - Did any person I ever sent to preach the Gospel to you, or help you in your Christian course, ever get any thing from you for me? Produce the proof if you can.
Did I make a gain - In refuting this slander, Paul appeals boldly to the facts, and to what they knew. “Same 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 πλεονεκτέω pleonekteō), means properly to have an advantage; then to take advantage, to seek unlawful gain. Here Paul asks whether he had defrauded them by means of anyone whom he had sent to them.