Morals need grounding in some sort of absolute. Otherwise, they are simply a preference made up by this or that person. Without God how can we even have moral categories called "good" or "evil" in the first place? Or, to use the specific word you used, "well-being". Without a transcendent standard, how do we even begin to know or decide what well-being even is? How can we even have such a term/idea?


These are not idle concerns for philosophers. It's how every group of people on the planet, now and in the past, has attempted to order their society.

I absolutely agree!