The Bible does acknowledge the reality of slavery in those times. A person could be taken as a slave if he was a prisoner of war, if he couldn’t pay a debt, if he stole something that he couldn’t repay, etc. However, there were laws governing how slaves could be treated and also ways they could gain their freedom. It’s important to realize that we view the subject through the lens of American slavery, with its incredible cruelty. To be a slave in Bible times was more like being a modern-day servant. In fact, the Bible uses the word “bondservant” when referring to slaves, and instructs masters to treat them kindly (Eph. 6:5–9). The apostle Paul speaks of Christians as being “slaves” of God and of Jesus Christ (Rom. 6:22; 1 Cor. 7:22).
Deuteronomy 23:15 “You shall not give back to his master the slave who has escaped from his master to you.