Here's a ridiculous comment on the Bible and slavery at
Bible Questions Answered.
A few notes. The author of the answer writes:
The Bible does not specifically condemn the practice of slavery. It gives instructions on how slaves should be treated (Deuteronomy 15:12-15; Ephesians 6:9; Colossians 4:1), but does not outlaw the practice altogether.
Just to make sure we're all on the same page, let's put those bits up here.
Deuteronomy 15:12-15:
12 If a fellow Hebrew, a man or a woman, sells himself to you and serves you six years, in the seventh year you must let him go free. 13 And when you release him, do not send him away empty-handed. 14 Supply him liberally from your flock, your threshing floor and your winepress. Give to him as the LORD your God has blessed you. 15 Remember that you were slaves in Egypt and the LORD your God redeemed you. That is why I give you this command today.
I think we need a little more of Ephesians 6 than just 9. Note the bits not mentioned (5 - 8).
Ephesians 6:5-9:
5Slaves, obey your earthly masters with respect and fear, and with sincerity of heart, just as you would obey Christ. 6Obey them not only to win their favor when their eye is on you, but like slaves of Christ, doing the will of God from your heart. 7Serve wholeheartedly, as if you were serving the Lord, not men, 8because you know that the Lord will reward everyone for whatever good he does, whether he is slave or free.
9And masters, treat your slaves in the same way. Do not threaten them, since you know that he who is both their Master and yours is in heaven, and there is no favoritism with him.
Colossians 4Masters, provide your slaves with what is right and fair, because you know that you also have a Master in heaven.
And just so we don't leave anything out here's some more bits
Leviticus 25:39 -46 :
'39 " 'If one of your countrymen becomes poor among you and sells himself to you, do not make him work as a slave. 40 He is to be treated as a hired worker or a temporary resident among you; he is to work for you until the Year of Jubilee. 41 Then he and his children are to be released, and he will go back to his own clan and to the property of his forefathers. 42 Because the Israelites are my servants, whom I brought out of Egypt, they must not be sold as slaves. 43 Do not rule over them ruthlessly, but fear your God. 44 Your male and female slaves are to come from the nations around you; from them you may buy slaves. 45 You may also buy some of the temporary residents living among you and members of their clans born in your country, and they will become your property. 46 You can will them to your children as inherited property and can make them slaves for life, but you must not rule over your fellow Israelites ruthlessly.
It seems to me that the Bible specifically gives rules about whom one is permitted to enslave, everyone but the Lord's chosen people. God only seems to disapprove of slavery when His people are enslaved -- not because slavery is wrong, but because they are His people, His slaves. Slavery IS racial in Biblical times, but the only protected race here is ultimately the chosen people.
From the directives above it is also clear that slavery was not as simple as a job or financial option. Educated slaves certainly didn't outnumber manual labor. Slaves must have been treated ruthlessly, else why would the Bible bother directing one about humane treatment of their slaves?
I'm not sure why a person reading the Bible, a person who enslaves themselves to this God would think that owning slaves is in any way wrong. The comment that the Bible is not intended to reform society and only intended as a map to personal salvation seems ridiculous.