tbh i understand the people that are like "the bible was written for its time period, in which it was acceptable to own slaves" + in that time period, slaves were conquered peoples and it was based on whether their country had been conquered and not upon their skin color like more modern slavery. all that said, telling you how to treat your slaves does basically equal condoning it. so
(wanna clarify I am not excusing it! I am not giving the bible/christianity a free pass/excuse, I'm only saying that it does need to be viewed in its historical context just like other older works whether fictional or nonfictional)