I suggest “Cheese and Crackers!"

Holy Shit!

I think that works too and is not explicitly christian.

Shor’s bones! A handsome man in Falkreath!

Well we just need a name that enploys all those concepts

Tbh I don’t usually pronounce the /t/ unless there’s a vowel immediately after. I’m usually saying something like [dʒizɪs kraɪs(s)].

I honestly think the popularity of Christianity is partially related to the “Rhyme as Reason” effect, where people feel that something that uses literary devices is inherently true because it just “sounds” right.