How are we to see the Old Testament's characters--typically a tangle of both virtue and vice--as models for our own ethical living? It is clear that Scripture intends for us to embody some qualities while eschewing others, and at times these are immediately obvious: David's wholehearted pursuit of God is admirable, while his adultery with Bathsheba and murder of Uriah are deplorable. But more often than not we are left with shades of gray, not really...