Dr Timothy J. Keller considers the doctrine of the Word through reflections based around Psalm 19. God's Word is perfect and true, and we can measure everything by the standard of Scripture. God reveals himself to us through nature, through the written Scripture, and through Jesus' actions.
In these ways God enables us to learn about him. Scripture points to Jesus and as Jesus becomes more real to us, Scripture also becomes 'more precious than gold' and 'sweeter than honey'. In this way we can embrace the whole of Scripture and let it guide us and transform even the sins of our hearts that we find it difficult to see.