Leviticus 25:44 in the King James Version
Both thy bondmen, and thy bondmaids, which thou shalt have, shall be of the heathen that are round about you; of them shall ye buy bondmen and bondmaids.
Context
43 You shall not rule over him with harshness, but shall fear your God.
44 “‘As for your male and your female slaves, whom you may have from the nations that are around you, from them you may buy male and female slaves.
45 Moreover, of the children of the aliens who live among you, of them you may buy, and of their families who are with you, which they have conceived in your land; and they will be your property.