After he broke his promise to Jesus, Peter wept bitterly. Peter was an absolutely broken man in the profoundest possible way, and yet within weeks he was poised as the leader of a new movement, about to become one of the most influential leaders in the history of the world. What broke Peter like this, and then what restored him so quickly? The answer is the same: promises. Promises are the reason he was broken, and promises are the reason he was restored. And the case of Peter tells us more about the power of commitments than, I think,
