>>1110
I don't think you can have fantasy without magic.
The way I see it you have two options:
1. Write classical fantasy without direct and overbearing mentions of anything Christian while having the religious subtleties you want, see
https://thebookslist.com/religious-fantasy-authors/ or
2. Write fantasy with totally transparent Christian ideas and characters, explicitly defined, that dominate the story from beginning to end.
I see that you're talking about the 'right hand path' and the 'left hand path' dichotomy. I'll give you a useful example to consider for option #1: the elves in LOTR aren't practicing LHP magic, JRRT writes that 'their magic is art', and that 'they make things even more beautiful'. The elves, who are in communion with Eru Iluvatar, or God, come close to falling when they create the 'Rings of Power', where they try to preserve Middle Earth from decaying, and in that instance, they want to change the world according to their own will, and Melkor is able to exploit that if I recall correctly.
The thing with option #2 is that the only "magic" that can be affirmed by the church is miracles, where God's will manifests, and it heals, restores something, or overcomes evil.
With option #2 I think you'll have to write about an extraordinary Christian person, perhaps a living saint who performs miracles, based on a historical person, going into religious / historical fantasy(?) There's many saints to draw inspiration from, recently I learned about St. Hermione, and her story is unforgettable.
https://youtu.be/1gq5MDh0qF8
However I don't know how to feel about "historical fantasy Saint fiction".