Without a moral authority then morality is a human construct that
differs from culture to culture because of that.
I would like to focus on this point for a moment. A lot of intelligent people think that this statement is true
(atheists and theists alike). In my early 20s, *I* used to think this claim was true. So I don't think it's
"obviously false" or anything. But I do think it's false. But it took me some careful study and some convincing to
get me out of my former position. You are asking all the right questions. You are getting to the heart of the
issue. So I'm inclined to engage you on this.
I'm going to try to present an abridged version of those arguments that finally changed my mind.
Morality is no more a human construct than math is a human construct. Sure, in some ways, math is a human
construct. We as humans created it, so to speak, so that we could make sense of quantity and space. Arithmetic
helps us understand quatity. Geometry helps us understand space. But, in a sense, mathematics, though ultimately a
human constuct, allows us to understand objective things about quantity and space.
Likewise, morality (may) help us understand objective things about how to do good (or bad) to others. Understanding
what is good and bad for other people (or perhaps even oneself) is a confusing and difficult endevor. I don't deny
that. It's very difficult and problematic to try to arrive at universal maxims concerning good and bad. A
controversial topic to be sure.
And, like with math, ethics may even contain insoluable problems. But none of this makes ethics necessarily
subjective. At the very least, morality is only as objective as math is. If someone wants to insist that math is a
human construct, fine. But math DOES give us a real (and objective) understanding of quantity and time. That's a
premise that I will stand by. It's hard to deny that.
Do people make errors when doing math? Yes. Do people misunderstand how best to do good to one another? Yes. But
that doesn't mean that morality can't have its basis in objectivity. It very well could.
James Rachels presented the problem like this:
1. Different cultures have different moral codes.
2. Therefore, there is no objective “truth” in morality. Right and wrong
are only matters of opinion, and opinions vary from culture to culture.
As Rachels goes on:
"We may call this the Cultural Differences Argument. To many people, it is
persuasive. But from a logical point of view, is it sound?
It is not sound. The trouble is that the conclusion does not follow from the
premise—that is, even if the premise is true, the conclusion still might be false.
The premise concerns what people believe. In some societies, people believe one
thing; in other societies, people believe differently. The conclusion, however,
concerns what really is the case. The trouble is that this sort conclusion does not
follow logically from this sort of premise."
https://rintintin.colorado.edu/~vancecd/phil1100/Rachels1.pdf
So, to me, moral relativism is just as useless as ever.
We can debate this if you wish. Do you find any problems with Rachel's objections? If so, we should work them out.
But that's only one prong of a two-pronged argument concerning God's necessity concerning moral objectivity. The next step is for me to demonstrate that, even if God existed and made moral pronouncements, does that make God's pronouncements objectively true or not? I say that God's pronouncements CAN'T be what makes morality objectively true. If that were the case, God's pronouncement would be the only deciding factor in what makes something right or wrong. But then we have to consider absurdities. There is nothing wrong wit hrape accept that God forbids it. Otherwise, there is no other thing that makes rape wrong. Let's say that God appears in the sky and says he is taking a vacation. While he is gone, he says that all his moral commandments are temporarily suspended. (They weill be reinstated when he gets back.) If that happens, does that mean that there is nothing wrong with rape until God returns? I would like to say that rape is wrong because something is wrong with rape. God's determination on the matter doesn't really matter as to the ultimate truth about rape. Whether God exists or not, there is something wrong with rape