This is true in the natural realm and also in the spiritual realm. “Revival” is warning the believer who is living like an unbeliever. His heart for God has stopped beating and the affections for God have subsided. He no longer breathes the air of fellowship with the Lord, and he is in need of resuscitation by the Father. David, a man after God’s own heart, needed reviving. At one point he confessed: Give me understanding, that I may observe Your law, and keep it with all my heart … and revive me