Under the Banner of Heaven, Part 2

Christians confess the Bible as the Good Book, the perfect guide for becoming loving and holy, just like Jesus. And yet, that same book describes God commanding the Israelites to kill every Canaanite living in the Promised Land. How are we to understand the Bible as the Good Book when it depicts God commanding actions like genocide? How are we to reconcile this narrative with the God revealed in Jesus Christ, the God who taught us to love our enemies?