Even if I caused you sorrow by my letter,1 I do not regret it. Though I did regret it--I see that my letter hurt you, but only for a little while--
References for 2 Corinthians 7:8
yet now I am happy, not because you were made sorry, but because your sorrow led you to repentance. For you became sorrowful as God intended and so were not harmed in any way by us.
Godly sorrow brings repentance that leads to salvation2 and leaves no regret, but worldly sorrow brings death.
References for 2 Corinthians 7:10
See what this godly sorrow has produced in you: what earnestness, what eagerness to clear yourselves, what indignation, what alarm, what longing, what concern,3 what readiness to see justice done. At every point you have proved yourselves to be innocent in this matter.
References for 2 Corinthians 7:11
So even though I wrote to you,4 it was not on account of the one who did the wrong5 or of the injured party, but rather that before God you could see for yourselves how devoted to us you are.
References for 2 Corinthians 7:12
By all this we are encouraged. In addition to our own encouragement, we were especially delighted to see how happy Titus6 was, because his spirit has been refreshed by all of you.
References for 2 Corinthians 7:13