"To love God] with all your heart, with all your understanding and with all your strength, and to love your neighbor as yourself is more important than all burnt offerings and sacrifices." -Jesus' words in Mark 12:33

Without question the crucial issue in living the Christian life is the condition of your heart. Actions may be temporarily deceiving, but ultimately our outward behavior will reflect what's inside, because our internal attitudes form who we really are. Those inner attitudes are also what God deems most important.

In this book one of...