bill-as shimrod says,we have been here before and as a former methodist [assuming you got some theology] will know that God does not live in our time/space /matter parameters but is eternal,spiritual,supernatural and to ask who created Him is an illogical question akin to asking "to whom is the batchelor married?"
everything that HAS A BEGINNING must have a sufficient cause.moreover that cause cannot be part of the creation or we would be talking of an infinite regression . the theist position does give an explanation that is at least logical.compare that to the atheist position that ultimately amounts to something arising from nothing,no matter how you dress it up.
perhaps you could elucidate as to what these "not minor" translations are that cast doubt on the accuracy of the many mss in establishing a good reading of the original autographs?.i do know that the nt at least is plentifully attested by many and early ms and that parts of th ot were essentially valdated for authenticity by qumran discoveries.pete.