Servants: Slaves or Bond: Captives Taken in War often Kept As
Source: TTT
Deuteronomy 20:14
But the women, children, livestock, and whatever else is in the city—all its spoil—you may take as plunder, and you shall use the spoil of your enemies that the LORD your God gives you.
2 Kings 5:2
At this time the Arameans had gone out in bands and had taken a young girl from the land of Israel, and she was serving Naaman’s wife.