"And strip Aaron of his garments and put them on Eleazar his son..." - Numbers 20:26   When a shepherd boy named David sat out in the lonely fields under the stars, his hands did not hold a hammer or a royal scepter. They held a simple wooden staff. Yet that young shepherd carried a fire in his chest for the presence of God. Years later, when life battered him through dark caves and agonizing failures, he did something remarkable. He did not let the pain make him bitter. Instead, he to...