"For the love of God is this, that we obey his commandments. And his commandments are not burdensome, for whatever is born of God conquers the world. And this is the victory that conquers the world: our faith."
(1 John 5:3-4)
Popular romantic novels and romantic comedy films seem to spend a lot of energy around people telling each other that they love another. Stereotypically, guys have a more difficult time doing this than their female counterparts, but not always. Saying, "I love you!" has become the pinnacle of romantic expression these days.
When it comes to expressing our love for God, however, the author of 1 John challenges us to go beyond simply saying the words "I love you." If we want God to know our love - DO SOMETHING ABOUT IT! Obey God's commandments. Now that might seem a bit overwhelming, when you think about the Bible in its entirety. But its' not about "fulfilling the law," it's about responding in love. We're told in 1 John 5 that God's commandments aren't burdensome at all - instead, when we are "of God" (ie. following his commands), we'll conquer the world! Maybe not in terms of worldly popularity and success... but with a life of meaning... a life worth living!