Leviticus 25:44-46

DouayRheims(i) 44 Let your bondmen, and your bondwomen, be of the nations that are round about you: 45 And of the strangers that sojourn among you, or that were born of them in your land. These you shall have for servants: 46 And by right of inheritance shall leave them to your posterity, and shall possess them for ever. But oppress not your brethren the children of Israel by might.