I loved this piece. The theme is definitely subtle, which I mean as a huge compliment! My only critique would be that it could have used more poetic language and prose, considering the Pauline letters you clearly drew inspiration from. It's definitely there at times, but you fall into a more conversation tone in some places. A more consistent prose would have really elevated this story.
The biggest compliment I can give this, though, is that I finished it wanting to read more! I was very excited to read this when you were discussing your idea on discord and you did not disappoint!