In Paul's greeting to the church at Corinth, we learn some valuable theological lessons.  This church is dealing with a myriad of issues. Paul is going to correct and rebuke the sinful behaviors at this church.  But before he does, he takes a moment to remind them of their position and high calling in the Lord Jesus Christ.  By virtue of their faith in Christ, they are no longer what they once were. They are now saints!  Obviously, this speaks of their position and not their practice.  But Paul is careful to keep justification and sanctification issues separate, and we must as well! Are you a saint or an "ain't"?  There "ain't" no in-between!