I'm sure this has been discussed in depth before by the scholarly minded on here. I'd be interested in seeing any former threads.
What are we to make of Greg Stafford's theory (and the Watchtower Society's) that the Hellenized philosophy of the early NT copyists caused them to remove the divine name (tetragrammaton or variants of) from the NT writings? Have any scholars offered a rebuttal?
The Watchtower has been somewhat vindicated in this through the relatively recent discoveries of copies of the LXX that contain the divine name, and that it now seems to be generally accepted that the NT writers may well have had available and used versions of the Septuagint that contained the divine name. The manuscript evidence for the LXX shows a pattern of the earliest copies containing the divine name but disappearing after the first century. There are various theories for why this happened, but we do know it happened.
Stafford and George Howard et al extrapolate this fact about the LXX to infer that the same process seems to have occurred with the NT in the space of only about 100-150 years between the original NT writings and the oldest found MSS. Yet, unlike manuscript evidence existing to prove this happened with the Septuagint, there is not a shred of direct ancient MSS to corroborate this claim insofar as the NT goes. So its an ad hoc theory.
Lundquist on his website tetragrammaton.org raises a number of objections to the theory, two of which are:
1. If we have confirmed manuscripts showing the gradual erasure of the divine name from the LXX, why don't we have the same evidence for easure of the name from the NT?
2. If something as important as the divine name was removed from the original NT writings (but without any MSS to prove it), it raises the accusation that the NT writings cannot be trusted at all, for what else could have been removed that we don't know about?
Although I think George Howard and Greg Stafford's theories seem very plausible, particularly in attempting to justify having the divine name in those places in the NT that quote or paraphras directly from the OT where the divine name occurs, overall I feel inclined to agree with Lundquist's objections for the two reasons above. At the end of the day, if the NT is inspired of God (taking the Christian perspective) then we must trust that God would have preserved the divine name in later copies if it was actually written under inspiration in the original autographs, or he would have at least ensured some manuscript evidence of the divine name's replacement existed and was discovered. It just seems inexplicable that God would have allowed his name to be removed without a trace if it was originally there and it was so important that Christians use it.
yadda