God never intends for His people to stand in one place once we gain right standing with Him. He wants us to move. The beginning of our movement should be in taking on all of His ways as spelled out in His Law. It is the best discipleship system ever designed, and is guaranteed to produce fruit that is pleasing to God.
The Holy Spirit uses it to tutor us in the way we should go, and when we get ‘all grown up,’ it still functions to guard and protect. His Word is the foundation on which we can build a house that honors Him in every area. His Law is love in action, and through it we learn how to love Him and how to love others as well.