Dubious wrote:
Correct! “ALL morality is a constraint on behavior”, precisely the point others and myself are trying to make which subsumes ALL societies; whether theistically motivated or not they depend upon those constraints being active.
However, there are two different types of constraint: legitimized and unlegitimzed. Theism has the former, and secularism only the latter.
Please give me an example of how theism “explains in an authoritative and rational way” why, for example, killing is wrong!
The word is "murder," and it's very easy to show, actually.
Your only objection so far to Theistic morality is merely
presumptive: that is, because you
presume there is no God, you (in a way that would then be quite right)
presume that there is no more warrant for Theistic morality than for secular. However, to presume in this way is to presume the very conclusion you would need in order to make your own case. You haven't proved it, you've just
presumed it and then said, "Because it's so, therefore I'm right."
If, however, we leave open the possibility that God exists, and take that possibility seriously, then it is not hard to legitimize anything He commands or intends as the information we need on morality.
If a Supreme Being said "Do X," or if "X" conforms to His character, then "X" is moral. QED.
If, as you wish to assume, there IS no God, however, then neither is any morality legitimizable. In fact, there is not even a way to say that whatever "morality" might be taken to be, it needs to be shown "legitimate" at all. For example, why should we not rape, pillage and loot whenever we wish? Only our post-Christian squeamishness or the fear of punishment by powerful others stands between us and that. But what if, like Nietzsche, we're courageous enough to be "bad" anyway? Who then shall say us nay, and on what basis shall we feel obliged to hear them on that?
Secular morality has no problem and sees no contradiction in condemning the likes of Hitler...
Indeed. BUT at the same time, it denies there can be
any real moral basis for preferring to do that, and in fact, makes it impossible to say why one cannot wholeheartedly
approve of Hitler and
help him pile up the corpses. Secularism has no view on what you MUST do about Hitler.
It has no moral information at all.