2 Corinthians 7:8

7:8 For even if I made you sad by my letter, I do not regret having written it (even though I did regret it, for I see that my letter made you sad, though only for a short time).

2 Corinthians 10:2

10:2 now I ask that when I am present I may not have to be bold with the confidence that (I expect) I will dare to use against some who consider us to be behaving according to human standards.

2 Corinthians 12:19

12:19 Have you been thinking all this time that we have been defending ourselves to you? We are speaking in Christ before God, and everything we do, dear friends, is to build you up.