'Buy' in the Bible

And when you sell something to your fellow citizen or [you] buy from your neighbor's hand, you must not oppress {one another}.

You must buy from your fellow citizen according to [the] number of years after the Jubilee; he must sell to you according to [the] number of years of yield.

" 'As for your slave and your slave woman who are yours, from the nations that [are] all around you, from them you may buy a slave or a slave woman.

And you may buy also from the children of the temporary residents who are dwelling with you as aliens and from their clan who are with you, who have children in your land; indeed, they may be as property for you.