“For what have I to do with judging outsiders? Is it not those inside the church whom you are to judge?” (v12). Apparently, the Corinthians believers were tolerating sexual immorality within the church (v1). Paul told them that instead of acceptance, they should be mourning, confronting the person, and upholding God’s standard of behavior. Paul said that it wasn’t their business to police the behavior of outsiders (v12-13), but they could not allow the community of Christ to be hurt by obvious sin among its members (v11-13).
“So that his spirit may be saved” (v5). The ultimate goal of holding one another accountable is so that our hearts do not become hard, and God can still reach us.