They weren't written as systematic explications of Christianity for the untaught but as "problem-solving" reminders, to the faithful, of how to handle problems that had arisen within the ekklesia of Christ during the years after His ascension.
True. I've many times had Mormons try to tell me that James was written to non-believers telling them how to work their way to heaven. However, it was written to saved Jews telling them how to use their new saving faith in Christ to work for the Lord.
“In a time of deceit telling the truth is a revolutionary act.” ― George Orwell
It's not over when you lose. It's over when you quit.
