The power of God’s Word [to save sinners and build a church] is a faith proposition. It takes faith to believe that invisible words and the invisble Spirit could give life to a valley of dry bones [Ezek. 37]. By comparison, it takes absolutely no faith to believe in the power of beauty, intelligence, strength, style, or humor. These qualities are attractive, and we can literally watch them draw a crowd. We can watch them build a “church”.
Jonathan Leeman, Reverberation: How God’s Word Brings Light, Freedom, and Action to His People, 57.