Frank, Re "What Logic?"
If you are aware of another persons "core beliefs", and we all have them, (even athiests
) then it becomes more or less possible to follow the train of thought that follows. Agreeing may be another matter.
Lets try a "core of belief" that would have been typical in Jesus's day and age.
There is a God and "Creator".
He has chosen some people to represent Him on Earth,
Then it follows that the "chosen" people have a "God given superiority" over the rest of us.
Since I am superior to you, as you are to the animals, I have a "God given" right, indeed a duty, to make you useful to me, as by being useful to one of Gods chosen people, you are being useful to the Lord our God and Creator.
If you are not useful to me then I must beat you as by not being useful to me you are usless to God and as Gods representative on Earth I must insure that you are properly chastised for "sinning against God".
Since I KNOW Gods will, due to my being chosen, you have no recourse but to obey me. You have no way of "knowing" what I "know" except by my telling you. And this you can know only imperfectly since you have not been "chosen".
IMO The "divine rights of kings', homosexuality as an abomination, slavery, papal infallibility, women as chattel, all follow from this basic premise. "There is a God, and he has revealed himself" through Moses or Joseph Smith, or Mohammed, or Martin Luther, or Billy Sunday, or James and Tammy Faye Baker."
I don't intent to pick in the Jewish society. To wit, Whosoever believith in Me shall not perish. It then follows that if you believe in Jesus you are effectually "chosen" and therefore superior. Or Mohammed, or Capitalism or whatever.
Need I point out that this premise has never been shown to be based in any "facts" at all. OK, I thought not
.
Since all races, nationalities, sexes, or hair colors are superior to every other one then each one must enslave another if it can do it. It's simply Gods will that it be like that.