God does not determine right and wrong

[Cinjin]

I found this in A Universe from Nothing by Lawrence Krauss.

To religious people: If god declared that rape and murder were morally acceptable, would that make them so? 

Most of you would probably say that god would not say such a thing. But why not? Presumably because god would have some reason for not making such a declaration. But this means that there is some reason for finding rape and murder to be morally wrong. In which case, why can't we appeal to reason directly and remove god from the discussion?

I don't understand this OP. Thousands of years has long since taught us one thing for sure:

God lets you do absolutely anything you want as long as you do it "in his name."

This is NOT breaking news bro.