If We Can’t Impose a Moral Standard from One Period of Time on Another, How Does That Affect the Moral Argument?

Questions about how one can use the moral argument and also say we can’t impose a moral standard from one period of time on another and responding to someone who says she would never follow a God who killed his own son.

• If you say we can’t impose a moral standard from one period of time on another, then how does the moral argument fit into this way of thinking?
• How would you respond to someone who says she would never follow a God who killed his own son?