Thank you so much for this comment! I'm really glad you liked this game.
I did my best to depict the cult somewhat realistically (aside from supernatural elements) because I feel it's important to understand why someone might join a cult and why it's hard to leave.
There isn't an ending where the MC can escape (unfortunately because in their situation it's nearly impossible). However there is an alternate ending that'll answer your question (in regards to why their god let's the priest get away with it). There was a small hint given in the main ending, but it could understandably be missed.
I don't know if you want to find the alternate ending on your own, but I will leave a hint, and how to get it below so you can keep scrolling if you just want to know.
The alternate ending is gained by getting "god" to like you/MC a lot. (I'll say how to do this below, if you want to figure it out on your own then don't scroll down)
The way to get the most points is to worship as much as possible, so click on the altar multiple times during the chores and in the isolation room at every opportunity. And provided I didn't accidentally mess up the code, it should work.