Oddbean new post about login | logout The holy texts in all various religions are a distillation of humanity. The stories are very similar in all the books and are generally well battle tested.
I'm just speaking from a western European and North American point of view. Where the relegion has been Christianity for the past thousand years (before state separated from relegion) I still think Christianity echoes through the core laws of English law. But back to the OG point; it doesn't make sense to swear on a belief or bible you don't hold.