Is slavery a good or bad thing?
Depends. Usually bad, but situational ethics and all that.
bad for the slave for sure, but what about for the master?
Usually good... in the sense of being lucrative. But it could be bad for the master if his slave-owning ways corrupted his soul somehow.
it must be quite nice to have a group of slaves - free labour, people to look down upon, free entertainment and the like plus surely an immense ego boost.
See what I mean about the soul-corrupting business? Masters should be humble.
Now I know this thread has been done before but what really is the Biblical stance on this one?
I'd argue that the Bible is incapable of having a stance, but that might be a quibble.
How is it possible for Jesus and other such figures not to condemn slavery outright?
Jesus didn't condone homosexuality so far as I know, but surely he was in favor of it. So maybe he just never thought to talk about slavery and offer his moral opinion on it. (Or did he actually address and condone it? I really don't know.)
How about Spartacus, was he a hero or villain?
Hero, in my opinion. Anyone who throws off his shackles and pillages the villas of fatcat Romans has to be a hero.
Well, unless he was unnecessarily brutal about it.
Why should a slave repect his master instead of attacking him?
Why not both? You can kill a rabid dog without hating him. You can even kill him respectfully.
Why did the composers of the Bible not just remove these sections?
Probably because they agreed with it. Primitive times make primitive thought.
is it ever acceptable to keep a slave?
Sure. Let's say we're post-apocalypse and your family will starve to death unless you enslave a squad of the Klingons who just decimated the earth.
Enslave them in good conscience.
But I don't think it'd be right to go down right now, in our current culture, and round up a bunch of people off the street and make them hoe your garden.
Not unless they're wall-street types, I mean. That might be morally acceptable. We should think about legalizing that.