From everydaylight.com by Selwyn Hughes:
The inadequacy, even bankruptcy, of trying to find God through the law is brought out most clearly in the passage before us today. The law, we are told, contains no true image, merely a shadow. It was the Word become word, hence a shadow and not an image. It follows that all discussion about the law being the route to finding God is nothing more than shadow boxing. It ends in futility.
The Word become word. I think it is sad how many other ways we place the word above The Word.