How original. So the correct morality just happens to be the one you were born in. Like a Christian who says he or she is a Christian because he or she grew up that way.
Very interesting. Thanks for the heads-up. But the dilemma is not hard. God commands that which is within his character - the questions aren’t the only options.
God cannot turn himself into a frog, for example. That’s outside the character of God.
So it’s kinda fun that I answered the question about slavery by pointing to God’s character and that was philosophically correct. 
I don’t mind being accidentally right.