Originally Posted by
Whifflingpin
"Aquinas does not say that morally vile behaviour is acceptable if God wishes it."
Neither did I.
"He states that if God wishes a thing it is not morally vile."
That's what I said he said - the kind of behaviour that would be generally considered morally vile is acceptable if God wishes it. Feel free to substitute "otherwise" for "generally" if that would make it clearer.
But when Aquinas or anyone states that anything God does is acceptable, that is simply making a definition that is both unarguable and unhelpful.
It is unhelpful because it means that God's behaviour offers no clue whatever to what our behaviour should be, and provides no basis for any kind of morality, or concept of good and evil.
It is possible to distinguish (not, for us, absolutely or infallibly, but at least practically) between a good person and an evil one. If such a distinction has any meaning, it is because (in the context of this discussion) what we call good behaviour is also what God calls good behaviour, and because God's behaviour is in the same direction as what we would call good, even if infinitely far in that direction.
Of course "the standards for God and man differ," but the teachings of Jesus may give a clue as to how they differ. The parable of the labourers in the vineyard or the prodigal son indicate a God who is generous beyond the human standard of generosity. Humans forgive up to seven times, God forgives beyond seventy times seven. Human love may extend to laying down one's life for his friends, divine love includes laying down one's life even for the very people who want to destroy it.
Now I cannot dispute that Jael's actions would have to be deemed morally correct if commanded by God, and I cannot deny that God would have the power and right to issue such a command, and I accept that, even if God had not commanded it He could turn an evil action into a good result. What I do not believe, however, is that God would ever command or condone such treachery and meanness as displayed by Jael, or behave Himself in a way that would be considered vile in humans.
The Bible, particularly the historical books of the Old Testament, shows God exhibiting or encouraging behaviour that would otherwise be considered morally repugnant To that extent, I believe it to provide a very unreliable portrait of God. It makes a wonderful history of man's quest for God, and shows how one nation developed its understanding of Him. The earlier books, I believe, were written by humans in their puppy stage, and show Dog as a champion chewer of carpets - the later ones show him as faithful companion and protector.