Neither shalt thou desire thy neighbour's wife, neither shalt thou covet thy neighbour's house, his field, or his manservant, or his maidservant, his ox, or his ass, or any thing that is thy neighbour's. Deuteronomy 5:21

And if thy brother, an Hebrew man, or an Hebrew woman be sold unto thee.... Deuteronomy 15:12

If the priest buy any soul with his money.... Leviticus 22:11

And if thy brother that dwelleth by thee be waxen poor, and be sold unto thee.... Leviticus 25:39

And if a man sell his daughter to be a maidservant.... Exodus 21:7

Thy bond-men and thy bond-maids which thou shalt have, shall be of the heathen that are round about you: of them shall ye buy bond-men and bond-maids. Moreover, of the children of the strangers that do sojourn among you, of them shall ye buy, and of their families that are with you, which they begat in your land. And they shall be your possession. And ye shall take them as an inheritance for your children after you, to inherit them for a possession, they shall be your bond-man forever. Leviticus 25:44-46