 Devotion implies a surrender of everything. Like Romans 12, 1 tells us that we should offer our bodies as a living sacrifice to our God, which is our reasonable service, that we shouldn't be conformed to the world, but we should be transformed by the renewing of our mind. Then we learn in the book of Ephesians that we renew our mind by the washing of the water of the word, listening over and over again to his word, that we are transformed.