2 Corinthians 7:10-13

Godly sorrow brings repentance that leads to salvation and leaves no regret, but worldly sorrow brings death. See what this godly sorrow has produced in you: what earnestness, what eagerness to clear yourselves, what indignation, what alarm, what longing, what concern, what readiness to see justice done. At every point you have proved yourselves to be innocent in this matter. So even though I wrote to you, it was neither on account of the one who did the wrong nor on account of the injured party, but rather that before God you could see for yourselves how devoted to us you are. By all this we are encouraged.
In addition to our own encouragement, we were especially delighted to see how happy Titus was, because his spirit has been refreshed by all of you.