2 Corinthians 10:6; 2 Corinthians 12:10; 2 Corinthians 13:9

6 And having in a readiness to revenge all disobedience, when your obedience is fulfilled .
10 Therefore I take pleasure in infirmities, in reproaches, in necessities, in persecutions, in distresses for Christ's sake: for when I am weak , then am I strong.
9 For we are glad , when we are weak , and ye are strong: and this also we wish , even your perfection.