'Servant' in the Bible

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.

However, if the servant says to you, "I do not want to leave you," because he loves you and your household, since he is well off with you,

you shall take an awl and pierce a hole through his ear to the door. Then he will become your servant permanently (this applies to your female servant as well).

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.

So Moses, the servant of the Lord, died there in the land of Moab as the Lord had said.