Morality doesn't exist.

Morality is just Empathy re-branded by religion in order to be codified and used to cudgel uneducated medieval serfs.

What they preach about in not killing, not raping, not fucking deer, etc.. etc... literally comes from simply giving the barest minimum of shits about the people around you.

Their problem however, is that Empathy not only predates their religion by hundreds of thousands of years (if not millions), but that Empathy is not limited to humans, which would mean that they're no longer the creator's "special little boy".

So they rename it, put it into neat and easy little Mnemonic devices (lets call them sins) and then run around telling the uneducated peasants "don't do this, don't do that" even though most people weren't doing those things anyway because most people have empathy and simply aren't assholes.