As a Christian the only way I use LLMs is to ask for specific verses, which I then pull up on my Bibles to confirm. I don't expect an LLM to ever understand my theological views (Christian theology is like... programming languages, nobody likes anyone else's...), but if I ask it questions like "how many verses have x phrase" I have some semblance of trust that it might figure out enough to feed me such verses.
I prefer to ask LLMs for starting points in research goals essentially.
I do agree with the sentiment of the author however, LLMs of today are probably not a good option for something where truth and accuracy are of the upmost importance as part of our faith, it would be really bad to ever have something mislead a would-be or existing believer.
The idea that an AI someday might be useful for apologetics is reasonable though, its just not ready today, if it ever will be, it will have very nuanced bias.
I mean, I have Bible dictionaries, Concordances, digital and physical, I do more legwork than most, but it is definitely nice to get a quick summary of verses, that some manual built lists miss entirely.
I prefer to ask LLMs for starting points in research goals essentially.