'Witless' in the Bible

I repeat then, let no one think that I am foolish; but even if you do, at least accept me as foolish, so that I too may boast a little.

To my shame, I must say, we have been too weak [in comparison to those pseudo-apostles who take advantage of you].But in whatever anyone else dares to boast—I am speaking foolishly—I also dare to boast.

If I wish to boast, I will not be foolish, because I will be speaking the truth. But I abstain [from it], so that no one will credit me with more than [is justified by what] he sees in me or hears from me.