Agreed. I don’t think I’ve EVER heard a christian use ANY of the reasons listed in the original post. To clarify for the original poster: your faulty premise was the contrivance of positions that the church and its members don’t hold. In other words, your original post is nothing more than a strawman argument… insulting at best because obviously, if these are answers that christians have given you, you need to ask around more.
The first question we have to ask is whether there can be an ethical standard or “rule of thumb” to speak of. I think we’re in agreement here, there is at least SOME moral standard we have to adhere to. But what about the NATURE of that moral standard?
I think we run into a philosophical breakdown here though. You’re a teleological ethicist. To wit (for those who don’t know): you support subjective morality in that you think it possible to measure the consequences of an action and then to judge the morality of said action against the consequences. I say hogwash. There’s no way for you to accurately predict consequences other than using unreliable social “norms”. For example, you may try to minimize suffering for a person being struck, only to find out that said person was a masochist and was gaining pleasure from being hit. I’m a deontological thinker: right and wrong is determined by set principles and is totally regardless of consequences. (for the record: I’m a blend of Kantian and Divine Command theory with a hint of prima facia ethics mixed in)
Okay, so we’ve arrived at our ethical disjoint, but again you don’t seem to have a problem with the deontological school of thought so much as you have with the specific idea of Divine Command. So now we arrive at the next question (because we are now assuming deontology is correct): does God tell us that something is good because it fits with the natural law, or is something good and fits with the natural law because God tells us? In other words, which is independent of the other? Or yet another way: does God derive goodness from following a universal and independent natural law, or does God determine the natural law?
Here’s the breakdown: a pure Kantian would say that natural law is independent. That if God gives us commands, it is because those commands fit in with the natural law. That’s a possible response to your answer above… and one that I suspect an educated Christian would give you. The answer would also include SOMETHING of your options in that God is omniscient and so His authority to play moral leader stems from perfect knowledge of objective natural law. The idea that His interests are different than ours is irrelevant at that point, since the natural law IS our interest.
A Divine Command theorist, on the other hand, would say that something is good because God says so. Here’s where your objection comes into play.
That’s where the Kantian influence on Divine Command theory comes in… the question of “WHAT about God’s saying so creates something good?” In this case I offer you another proposition: that God’s word makes the natural law… when God says something is good, the very concept of moral theory and benefit to us as humans is rewritten. Example: God tells us do not murder your spouse. Humans derive no intrinsic benefit from murdering our spouses. However, God designed praying mantises and black widows, which both murder their spouses. In fact, God designed them FOR murder of spouses… but at the same time, the natural law is different for said lower animals: they can’t mate without murdering their spouses.
Now, we know that the word of God is perfect (without flaw), eternal (does not change through all time) and universal (applies in all places and all existances), so God is not going to tell us to start murdering each other… however, I would like to throw out philosophically that if God DID command such an act that we would find an intrinsic benefit from following it would be present after such a point. In the same way, all the morality of the Divine Command theory can be traced to intrinsic benefits to both societies and/or individuals: whatever God has told us is good has direct benefits to mankind.
I could go on rambling, but I think it would be good to stop here for response first…