The Apostle Paul faced this situation when he wrote his first letter to the church in Corinth. They were divided, selfish, misled, judgmental, and arrogant. Paul needed to set them straight, and he did in a very upfront letter. In his concluding sentence he reminds them why he wrote them in the first place. "My love to all of you in Christ Jesus. Amen." (1 Cor. 16:24) He loved them.
This love compels Paul to write another letter. There were still lessons and insights they needed to learn. As we return to the 2nd letter to the church in Corinth, perhaps there is something still for us to learn as well.