The document known as The Ten Commandments, more formally referred to as The Decalogue, remains among the most controversial and complicated passages in the Hebrew Bible. Even today, the twentieth chapter of Exodus continues to serve as a major religious and ethical icon within popular culture and religious communities, despite its many unexplained elements. Lawsuits over the display of Decalogue Tablets have occupied courtrooms in more than half the states of this country. And yet, few people understand that there is not one, but three versions of what are usually called "The Ten...