2 Corinthians 12:5-6, 9, 11

On behalf of such a one will I glory: but on mine own behalf I will not glory, save in my weaknesses. For if I should desire to glory, I shall not be foolish; for I shall speak the truth: but I forbear, lest any man should account of me above that which he seeth me to be, or heareth from me.

And he hath said unto me, My grace is sufficient for thee: for my power is made perfect in weakness. Most gladly therefore will I rather glory in my weaknesses, that the power of Christ may rest upon me.

I am become foolish: ye compelled me; for I ought to have been commended of you: for in nothing was I behind the very chiefest apostles, though I am nothing.