Albert Barnes on 2 Corinthians 11:16

I say again. I repeat it. He refers to what he had said in 2Cor 11:1. The sense is, "I have said much respecting myself which may seem to be foolish. I admit that to boast in this manner of one's own self in general is folly. But circumstances compel me to it. And I entreat you to look at those circumstances, and not regard me as a fool for doing it."

If otherwise. If you think otherwise. If I cannot obtain this of you, that you will not regard me as acting prudently and wisely. If you will think me foolish, still I am constrained to make these remarks in vindication of myself.

Yet as a fool receive me. Marg., "suffer." See 2Cor 11:1. Bear with me as you do with others. Consider how much I have been provoked to this; how necessary it is to my character; and do not reject and despise me because I am constrained to say that of myself which is usually regarded as foolish boasting.

That I may boast myself a little. Since others do it and are not rebuked, may I be permitted to do it also. See 2Cor 11:18,19. There is something sarcastic in the words, "a little." The sense is, "Others are allowed to boast a great deal. Assuredly I may be allowed to boast a little of what I have done."

(c) "if otherwise" 2Cor 12:6,11 (1) "receive" "suffer"