The conclusion of the story of Ruth. Commentators tell us that a key role of the book of Ruth is to defend David as a legitimate ruler in the light of an obscure law found in Deuteronomy 23:2. When we understand that David is a descendent of Perez (and discover how Perez was conceived), it matters how many generations David is removed from Perez, and that, among other things, is what Ruth shows us.
