As King David neared the end of his life and forty-year reign over Israel, he said this in a prayer: “I know also, my God, that thou triest the heart, and hast pleasure in uprightness” (1 Chronicles 29:17). The heart of a man is very important to God.It is the heart that reveals who a man truly is, for it is the heart that moves a man’s words and actions. Jesus said this in Matthew...