In 2 Corinthians 1:12. Paul turns to deal with the problems he's had with the Corinthian church. One of these problems was due to misunderstanding. The Corinthians had a right to expect Paul to keep his word. Paul states that his conscience is clear in that regard, but there is more to the story. Integrity in ministry is a critical issue for Paul so he takes time to make sure they know what happened, so they will be able to trust him and his word.