Quote from : Debt: The First 5,000 Years Book

Even in the Bible, the admonition in the Ten Commandments not to 'covet thy neighbor's wife' clearly referred not to lust in one's heart (adultery had already been covered in commandment number seven), but to the prospect of taking her as a debt-peon—in other words, as a servant to sweep one's yard and hang out the laundry.