2 Corinthians 13:8

13:8 For we cannot do anything against the truth, but only for the sake of the truth.

2 Corinthians 12:6

12:6 For even if I wish to boast, I will not be a fool, for I would be telling the truth, but I refrain from this so that no one may regard me beyond what he sees in me or what he hears from me,