Leviticus 25:40-45

⁴⁰But as a hired laborer, as a sojourner, shall he be with thee; until the year of the jubilee shall he serve with thee:

⁴¹And then shall he depart from thee, he and his children with him; and he shall return unto his own family, and unto the possession of his fathers shall he return.

⁴²For my servants are they, whom I brought forth out of the land of Egypt: they shall not be sold as bond-men are sold.

⁴³Thou shalt not rule over him with rigor; but thou shalt have fear of thy God.

⁴⁴But thy bond-man, and thy bond-woman that shall remain thine, shall be of the nations that are round about you; of them may ye buy bond-man and bond-woman.

⁴⁵And also of the children of the strangers that sojourn with you, of them may ye buy, and of their families that are with you, which they have begotten in your land; and they shall remain to you as a possession.