It's plausible. I don't see any way to know for sure whether James is speaking to all the tribes, claiming some kind of authority to himself to speak in this familiar way to them (as an apparently important figure who ended up dead by the high priest but not without causing an upset)... it's possible. It's also possible (more than, given the scope) that this is an overly effusive address. Both may be true at the same time.Ben C. Smith wrote:On the other hand, do you not see something in the fact that we know Paul's usage reflects a fictive kinship (Paul himself being a Jew writing to gentiles) but cannot be at all certain that James' usage reflects the same practice (since his letter is addressed to actual national kin, and therefore his use of "brethren" may be nationalistic, as we find in Tobit)? It seems to me that if James is calling his fellow Israelites "brethren", rather than fellow cultists, then that is a pretty big difference from how Paul uses the term. And it really does look to me like James may well be thinking of the twelve tribes when he uses that term.
An overly broad address (or absent address) would also be one of the quirks of Christian epistolary literature, actually. Just look at Hebrews (no formal address) or the Epistle of Barnabas (which begins "Bid you greeting, sons and daughters") or 2 Peter ("To those who have obtained a faith of equal standing with ours") or 1 John (no recipient named) or 2 Clement ("Brethren, we ought...") or Jude ("to them that are called, beloved in God the Father") or the Epistula Apostolorum ("unto the churches of the east and the west, of the north and the south"). While the letter of James by contrast emphasizes that its recipients are Jewish ("to the twelve tribes in the dispersion"), it shares the address of a letter that can be considered an "open letter" for all who are in a like-minded community, or who at least are enough of like mind with James the Just to read his letter and consider themselves instructed by him.
I both agree that James may be using the term slightly differently than Paul and everyone else who supports the Gentile mission and at the same time find myself agreeing with you that the approach in James (dating back to some pre-literary origin in the usage of the Jerusalem community around James, perhaps) could be the precursor to the approach in Paul, yet I do not see any substantial support in either fact for the conclusion that this James and his letter weren't in a real sense "Christian." Indeed, in a real way, its "Christian" character explains the difference, inasmuch as Paul's letters tell us of a James who emphasized the mission of the good news of Jesus Christ to the Jews only.
This suggests that James was in a way the ringleader of the "circumcision party," which had a negative influence (to Paul) on Cephas in Antioch. But this makes sense in the context of a "Jesus Christ" cult that was deciding the boundaries of whether to allow Gentiles. The Letter of James and its address (and indeed, perhaps, its choice of that address to limit the scope of "brothers") put James' letter as what seems to be the sole surviving witness on that side of the line in the sand. Yet at the same time, it is also characteristic of "Christian" literature in doing so and in other respects.11 But when Cephas came to Antioch, I opposed him to his face, because he stood condemned. 12 For before certain men came from James, he was eating with the Gentiles; but when they came he drew back and separated himself, fearing the circumcision party.