Commentaries
11:16-21 It is the duty and practice of Christians to humble themselves, in obedience to the command and example of the Lord; yet prudence must direct in what it is needful to do things which we may do lawfully, even the speaking of what God has wrought for us, and in us, and by us. Doubtless here is reference to facts in which the character of the false apostles had been shown. It is astonishing to see how such men bring their followers into bondage, and how they take from them and insult them.
21. as concerning reproach—rather, "by way of dishonor (that is, self-disparagement) I say it."
as though we … weak—in not similarly (2Co 11:20) showing our power over you. "An ironical reminiscence of his own abstinence when among them from all these acts of self-exaltation at their expense" (as if such abstinence was weakness) [Alford]. The "we" is emphatically contrasted with the false teachers who so oppressively displayed their power. I speak so as though WE had been weak when with you, because we did not show our power this way. Howbeit (we are not really weak; for), whereinsoever any is bold … I am bold also.