In his sermon “This Man Went Down to His House Justified,” from August 6, 2006, John Piper spurns the emphasis that secular people often place on Jesus as a great moral teacher. Not because he isn’t that; rather, it’s because apart from the salvation that Christ came into the world to offer us, his moral genius is beside the point. The moral commands of Jesus, Piper implies, are not useful guidelines for people in general; they are instead
descriptions of the way new human beings behave who have been born again; who have therefore been enabled supernaturally to see the glory of Jesus; who have recognized the incredible outrage of their sin; who have ceased to trust in anything about themselves; and who have cast themselves entirely on Jesus for mercy, for righteousness, and for forgiveness.
I like that! While Piper doesn’t let us disciples off the hook for living up to Jesus’ many commands, he rightly recognizes that apart from God’s saving grace, made possible by Christ’s atoning death, we are helpless to carry them out. God must first perform a supernatural action, which he does through justification and new birth.
Moreover, he emphasizes that our obedience isn’t something we perform in order to be saved; rather, we obey in response to the salvation that he has already given us.
I would only add one thing: even after we have been born again, we will still fail (unless or until we are perfected in love, this Methodist pastor hastens to add) to cast ourselves “entirely” (superlatives make me nervous) on Jesus for mercy, righteousness, and forgiveness. As Paul writes in Romans 7, “For that which I do I allow not: for what I would, that do I not; but what I hate, that do I.”
But Piper’s right: Inasmuch as we do cast ourselves on Jesus, our obedience, along with many good works, will result.