Deuteronomy 15:12

Release of Debt Slaves

15:12 If your fellow Hebrew – whether male or female – is sold to you and serves you for six years, then in the seventh year you must let that servant go free.

Deuteronomy 24:14

24:14 You must not oppress a lowly and poor servant, whether one from among your fellow Israelites or from the resident foreigners who are living in your land and villages.