It means that any two Christians, with nothing else but a common faith in Christ, can have a robust friendship, helping each other on their journey toward the new creation, as well as doing ministry together in the world. How can they do that? They do it through spiritual transparency. Christian friends are not only to honestly confess their own sins to each other (James 5:16), but they are to lovingly point out their friend’s sins if he or she is blind to them (Romans 15:14).
