Exodus 21:2
If you buy a Hebrew servant, he is to serve you for six years. But in the seventh year, he shall go free without paying anything.

Exodus 21:3
If he arrived alone, he is to leave alone; if he arrived with a wife, she is to leave with him.

Exodus 21:6
then his master is to bring him before the judges. And he shall take him to the door or doorpost and pierce his ear with an awl. Then he shall serve his master for life.

Exodus 21:8
If she is displeasing in the eyes of her master who had designated her for himself, he must allow her to be redeemed. He has no right to sell her to foreigners, since he has broken faith with her.

Nehemiah 5:5
We and our children are just like our countrymen and their children, yet we are subjecting our sons and daughters to slavery. Some of our daughters are already enslaved, but we are powerless to redeem them because our fields and vineyards belong to others."