Whom have I in heaven but thee? So cried Asaph the psalmist. It is an astonishing moment in the history of man, for Asaph had looked upon the wicked and seen how they prospered. His feet had well nigh slipped, he says. Yet he held fast to two truths that had been revealed to him. The first is that the wicked, by their very deeds, become hard of understanding, and in the end go down to slaughter, like the witless beasts. The second is that, in a way that batters down the fortress of death itself, the just man...