2 Corinthians 7:5-7
5-7When we arrived in Macedonia province, we couldn't settle down. The fights in the church and the fears in our hearts kept us on pins and needles. We couldn't relax because we didn't know how it would turn out. Then the God who lifts up the downcast lifted our heads and our hearts with the arrival of Titus. We were glad just to see him, but the true reassurance came in what he told us about you: how much you cared, how much you grieved, how concerned you were for me. I went from worry to tranquility in no time!
8-9I know I distressed you greatly with my letter. Although I felt awful at the time, I don't feel at all bad now that I see how it turned out. The letter upset you, but only for a while. Now I'm glad—not that you were upset, but that you were jarred into turning things around. You let the distress bring you to God, not drive you from him. The result was all gain, no loss.