My mom made me confused

[Der/die AtheistIn]

She doesn't claim that the rules need to stem from Christianity. She thinks that Christianity is good because it has good rules (not every single rule) that apply in every context.

There are a lot of belief systems that have good rules that apply in every context, religious and non religious. Sounds like she just does not want to think outside of her comfortable box.

I agree. Better this than a fundamentalist though.