Leviticus 25:37-41

³⁷Thou shalt not give him thy money upon interest, nor give him thy victuals for increase.

³⁸I am Jehovah your God, who brought you forth out of the land of Egypt, to give you the land of Canaan, and to be your God.

³⁹And if thy brother be waxed poor with thee, and sell himself unto thee; thou shalt not make him to serve as a bondservant.

⁴⁰As a hired servant, and as a sojourner, he shall be with thee; he shall serve with thee unto the year of jubilee:

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