2 Corinthians 12:9

12:9 But he said to me, “My grace is enough for you, for my power is made perfect in weakness.” So then, I will boast most gladly about my weaknesses, so that the power of Christ may reside in me.

2 Corinthians 12:13

12:13 For how were you treated worse than the other churches, except that I myself was not a burden to you? Forgive me this injustice!

2 Corinthians 13:10

13:10 Because of this I am writing these things while absent, so that when I arrive I may not have to deal harshly with you by using my authority – the Lord gave it to me for building up, not for tearing down!