they differ when it comes to more complex moral issues (hence why you have like 40,000 different sects just in christianity) but at their core you'll find that the basic stuff is largely the same shit that people follow by instinct (the golden rule, don't kill, rape, steal etc.) the bible actually acknowledges this: "and you show that you are a letter from christ delivered by us, written not with ink but with the spirit of the living god, not on tablets of stone but on tablets of human hearts.")
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