Leviticus 25:44-46

44And as for thy bondmen, and thy bondmaids, whom thou shalt have; of the nationsH1471 that are roundH5439 about you, of them shall ye buyH7069 bondmen and bondmaids. 45Moreover of the children of the strangers that sojourn among you, of them shall ye buyH7069, and of their familiesH4940 that are with you, which they have begotten in your landH776: and they shall beH1961 your possessionH272. 46And ye shall make them an inheritanceH5157 for your children after you, to hold for a possessionH272; of them shall ye takeH3423 your bondmen for everH5769: but over your brethren the children of IsraelH3478 ye shall not ruleH7287, oneH376 over another, with rigor.