A random spiritual musing

Here is something I have been wondering about for a few days. I'm probably one of the only people to wonder about this. If an angel was talking to a Japanese person, what pronouns would be used? Possibly Watashi[-tachi] for the angel to refer to 'themself', since it is gender neutral and quite formal [the -tachi part turns it from 'I' to 'we'], and Anata to refer to whomever was listening [though apparently in some parts of Japan, Anata is informal and Omae is formal, instead of the other way round, though I'm not entirely sure about that].

[Of course, my Japanese is limited at best, so I could be completely wrong about all of this...]