I'm applying for the second time for the ThD at Duke (Systematics, not NT though so YMMV). Just providing a datapoint for Duke.
I have an MS/PhD in a science discipline and was briefly a professor and chaplain at an EMEA campus of an R1 US university. I also have an M.Div (cum laude, not that anyone cares) from an evangelical seminary. My GRE was 170/170, and I have 5 years working in finance and 10 in tech. My LoRs were good, but not stellar.
I didn't get a second look from Duke.
There is a bit of a special circumstance, as I had selected Huetter as my PoI and he stealth left Duke before my application cycle during the recent Catholic faculty bloodbath (oops!), but still. I took one cycle off to write a paper that I presented at SBL and that is in submission to JBL, found another PoI and established a relationship with him (he's writing a supplementary LoR/LoS), completely rewrote my personal statement, and got a couple of new recommenders who are writing much stronger statements, including a MacArthur Fellow with whom I worked.
I'm still not confident.
Duke had a lot of internal admits from the ThM, which means that in effect external candidates are competing for fewer spots. 100% of the current students with whom I have conferred came through the ThM, some of them after being punted down after a doctoral application. And for those vanishingly few spots, while they're looking for interdisciplinary people, a cursory reading of abstracts from the PhD and ThD dissertations over the last ten years indicates that "interdisciplinary" means "social sciences and nothing else." The impression I get from speaking with students is that if you're in the general pool (i.e. not with a PoI who already really wants to work with you), the first-cut criteria used to desk reject or move you to the next round are not really flexible - GPA, GRE, research track record. In your case the last two are mutable, and while there's not really a downside other than the application fee for applying this year, it would probably be worth it to improve those two in order to stand a fighting chance for a Duke admit.