The fact that you have such moral outrage about slavery is because you have adopted a Christian ethos
That is interesting because the Bible, the source of Christian thought and teaching, is actually reasonably "ok" with slavery. There's virtually nothing within the Gospels that would indicate slavery is a moral evil. Even in the Old Testament slavery seems to be acceptable (except for the enslavement of the Israelites in Egypt which is a grave insult to God).
I think what is shows is that no religious philosophy can necessarily be counted on to be a "moral guide" anymore than just random people's thoughts.
, whether you are aware of it or not. Our culture's 2000 year experience with Christianity tends to make that completely unavoidable.
This is true. It becomes very hard to parse out the impact of two millennia of a philosophy being presented as our common moral truth and that which we would naturally revert to without the Bible or religious texts/traditions.
But even then our "Christian tradition" is largely "made up" and not present in the BIble as it regards things like "slavery". Slavery is accepted in the Bible and even carries with it obligations for the enslaved.
Our moral disgust at slavery actually comes from a deeper place within us: that part where we realize that the person we are enslaving is a person
just like us and we wouldn't enjoy being enslaved.
I think a lot of our moral inclinations come from a deeper part of our experience as humans rather than some arbitrary "holy book" which is so unclear on many points that it requires additional exegesis to formulate a workable rubric.
There's nothing wrong with slavery in a universe of blind physical forces and animals that are just collections of protons and electrons. It might suck to be a slave, but it might be great to be a master. You have no ultimate objective moral authority or foundation to point to justifying your moral outrage.
And that's really the kind of morality humans have. One's religion NEVER stops one from doing whatever evil is truly in their heart. They simply make up a justification.
Take America's current problem with "guns". We are dying by classroom full because we value "living by the sword". The Bible actually has a very good reference to Jesus himself telling people to put up again thy sword into its sheath because those who live by the sword will die by the sword. That's pretty clear language and would make a truly "Christian" nation abandoning anything even remotely like the massive gun ownership we currently have.
But the same Bible also has the same guy, Jesus, saying he did not come to bring peace but to bring a sword (obviously metaphorical) so the justification exists for those who wish to honor Jesus' preaching of love and peace but also keeping strapped.
Nobody in the ancient Greek, Egyptian, Mesopotamian, Mayan world expressed the slightest discomfort with slavery,
And very few in the Antebellum South would either.
infanticide, human sacrifice.
Yet, ironically, Christianity is founded based on human sacrifice. The final "scapegoat" was required to atone man to God.
The first literature in human history that taught all humans have inherent value and are all worthy of dignity was the early Christian literature. It was also the first literature that advocated for the humane treatment of slaves, or freeing them.
That makes it sound like the BIble is clearly anti-slavery. And as has been shown many times now, that is simply not true.
Christian theological writing also did not end after the first century. Augustine specifically wrote that slavery was a sin that was contrary to Gods intent.
Latter exegesis on the writings in the Bible is a perfect example of the human-nature of religion. It is the later writers and thinkers like Paul or the Church Fathers who actually "created" the faith from the scraps of often disjointed and contradictory philosophies.
In some aspects one could ask: why did Augustine need to write anything about the evil of slavery? It should have been manifestly clear in the "original" (ie the holy texts).
Subsequent theology and exegesis is just that:
subsequent.
We all agree
today that slavery is bad, but a first century Christian would not necessarily have thought that. As is evidenced by the writings of the time and directly from the primary holy books themselves.