2 Corinthians 7 Metanoia

Paul wrote an angry letter to the Corinthians showing their sins before "2 Corinthians". Paul was worried about how they would read his letter: "perhaps they would be grieved and offended". Titus brought news to Paul about how his letter was received. It produced "metanoia", a new view about their sins, a repentance that made them confess and hate their sins.
Paul became very glad about their reaction;

11-13 And now, isn’t it wonderful all the ways in which this distress has goaded you closer to God? You’re more alive, more concerned, more sensitive, more reverent, more human, more passionate, more responsible. Looked at from any angle, you’ve come out of this with purity of heart. And that is what I was hoping for in the first place when I wrote the letter. My primary concern was not for the one who did the wrong or even the one wronged, but for you—that you would realize and act upon the deep, deep ties between us before God. That’s what happened—and we felt just great.