The letter of James is among the most 'suspect' books of the New Testament. It was by no means clear that it would be included in the list of authoritative books of the Christian church (called the canon) until very late in the day. Reading it quickly you would not find too much specifically 'Christian' content in it. Most famously Martin Luther declared James 'an epistle of straw'. He wrote somewhat dismissively, I will not have him in...