There are different kinds of slavery in the Bible. There are instructions on how you sell your daughter into sexual slavery (Exodus 21:7-11), for instance. It also allows you to beat a slave to death, as long as the slave does not die within a day (Exodus 21:20-21). There are also detailed instructions on buying and selling slaves as you would buy and sell livestock, which is exactly like "American-type" slavery (see Leviticus 25:44-46).<quoted text>Okay... I guess this is one of those Red-herring thingies... There were different kinds of slaveries... and some of them are not even called that any more as people are simply hired at contract to perform a certain task now-a-days or hired to do some obligatory work.
At that time service "mostly" was more closely related to Employer/employee versus Owner/slave (and there was that too). Then there were debt/bondage where a person owed a debt and instead of going to debtor's prison if he could not pay he would serve until he met his payment.
God isn't into Egypt/Hebrew or American-type of slavery.
Do you consider those things to be moral? The Bible does.
How about the concept of forcing a rape victim to marry her attacker (Deuteronomy 22:28-29)?