Is there unity in the Epistle of James?

A:The Epistle of James sounds like a treatise written against the Pauline notion that the faith alone is need for salvation, as opposed the "works of the law". James 2:14-16 is a famous tirade against such an idea, arguing for the insight that "faith by itself, if it has no works, is dead" (James 2:17). The Letter consists entirely of moral exhortation in the genre of proverbs, maxims, and ethical impereratives.

The teaching of the James is not about the Christian faith, but about the importance of living a moral life and the arguments for doing so are set forth as common wisdom, the source and authority for which are taken for granted by the author. Sayings reminiscent of the teachings of Jesus are not given special privilege and are not even attributed to him. They are interspersed with proverbs and imperatives typical of the Jewish wisdom tradition, as well as many Greek-style maxims, examples and small rhetorical units carefully crafted in the style of the Hellenistic art of persuasion.

As described above, the Epistle of James has unity of thought. One possible exception to its overall unity is found in verses 1:1 and 2:1, which are the only references to Jesus Christ and could actually be later interpolations added to make this a 'Christian' epistle. Bear in mind that we do not really know who the author was.