8Even if I caused you sorrow by my letter, I do not regret it. Although I did regret it, I now see that my letter caused you sorrow, but only for a short time.
9And now I rejoice, not because you were made sorrowful, but because your sorrow led you to repentance. For you felt the sorrow that God had intended, and so were not harmed in any way by us.
— 2 Corinthians 7:8-9