Moral Argument for God's Existence

[genkaus]

Apparently not. Right now, I'm seeing a circle: if there's some common function or mechanism among humans which leads to moral ideas or behavior, then that is the objective foundation of morality.

Wrong. There is a common function or mechanism - namely, the capacity to reflect and choose your actions - that makes you capable of moral ideas and behavior, but does not necessarily lead to it. However, assuming that common function to result in an inherent desire, it would serve as the objective foundation of morality.

We must determine what mechanism does this by first knowing what people normally call "moral behavior." But in that case, it's merely an exercise in detective semantics, rather than the revelation of any real property of humanity.

If you look at my argument carefully, you'll see that I'm looking past what people usually call moral behavior and figuring out the basis on which it is regarded as moral.

Also, you seem to be equating moral agency with morality. Morality is doing what is right, or a system or ideology determining what is right, and moral agency is the capacity to do what is right. They are not the same.

Yeah, I'm not doing any such thing. I've made the distinction clear and adhered to it.

Okay, let's take the orange example, or the cannibal example, or any other. Tell me by what objective way the individuals involved will make their choices.

I've already given you those answers. You just ignored them.