2 Corinthians 7:8-9

Twentieth_Century(i) 8 For, though I caused you sorrow by my letter, I do not regret it. Even if I were inclined to regret it--for I see that my letter did cause you sorrow though only for a time-- 9 I am glad now; not because of the sorrow it caused you, but because your sorrow brought you to repentance. For it was God's will that you should feel sorrow, in order that you should not suffer loss in any way at our hands.