I found this on the Logos blog today. It’s something I wrote for the Logos blog in 2007, and I don’t think I ever posted it here.  Forgot I even wrote it (I’m doing some LXX thinking today at work so I found it via Google!).  Here’s the short article — it addresses the “law dispensed by angels” idea in the NT, something that isn’t in the traditional Hebrew text, but IS suggested by the LXX.