"... The reason the LXX is worthy of mention is because the Greek Old Testament was, by and large, the Bible of the New Testament writers. Now, this is a bit of an overstatement, since a number of Old Testament citations in the New Testament seem to correspond more closely to the Hebrew text than to the Greek, and some don't line up with any version in particular ... If one compares the TNIV of Deuteronomy 33:2 with an English translation of the LXX, one notices some differences ... It is not immediately clear, however, why the LXX takes qdsh as a place name, in keeping with the general tenor of the passage to speak of locations from which the Lord came, but then takes mimino in a nongeographical way, unless it is to correspond more easily with the next word. The LXX reads that difficult Hebrew 'eshdat, somewhat inexplicably, as 'angels with him.' How these two are connected is cloudy indeed, but it likely reflects the Greek translator's attempt to handle a real difficulty ..."