The Romans were very religious. They considered their slaughter and subjugation of other cultures and civilizations to be their moral duty. Read some of what they wrote at the time and learn a thing or two.
The early Catholic Church had no problem burning people at the stake, practicing the most hideous forms of torture, and slaughtering entire cultures in the name of their religion. Do you call that conduct "moral" or "religious"?
The Code of Hammurabi dates to roughly 1700 BC, well before what you consider "religion" was established, yet they thought their laws were the very height of morality.
Be careful confusing religion and morality. They very often have absolutely nothing to do with each other.
Show me a post one? It is an individual thing, always has always will be, nothing can or ever has changed that. Humans will always be human!