A man might, in accordance with existing custom, sell his daughter to another man with a view to her becoming an inferior wife, or concubine. In this case, she was not “to go out,” like the bondman; that is, she was not to be dismissed at the end of the sixth year. But women who were bound in any other way, would appear to have been under the same conditions as bondmen. See Deuteronomy 15:17.
Related Commentaries of Exodus 21:7
Exodus 21:7
7 And if a man sell his daughter to be a maidservant, she shall not go out as the menservants do.