David loves God's law and that love is shown to be more than just momentarily emoted romanticism by the fact that David thinks on God's law. The law of God is his meditation ALL the day. God's commandments are EVER his.
What about us? If we say that we love the Word can we back up our lip service by our thought service?
What are you and I thinking on all the day? What is ever in our minds? What are we carrying around in our heads and in our hearts as we go about life? The answer to those questions just might give us an honest clue as to just how much we love the Law.