Leviticus 25:44-46

44And as for thy bondman and thy handmaid whom thou shalt have — of the nationsH1471 that are roundH5439 about you, of them shall ye buyH7069 bondmen and handmaids.

45Moreover of the children of them that dwell as sojourners with you, of them may ye buyH7069, and of their familyH4940 that is with you, which they beget in your landH776, and they shall beH1961 your possessionH272.

46And ye shall leave them as an inheritanceH5157 to your children after you, to inheritH5157 them as a possessionH272: these may ye make your bondmen for everH5769; but as for your brethren, the children of IsraelH3478, ye shall not ruleH7287 over oneH376 another with rigour.