And His commandments aren't burdensome and heavy, like the commandments of Moses. Love and faith always go together. To love Jesus is to believe in Him, and to believe in Jesus is to love Him. And to love Him is to love one another. But Jesus pushes things a bit further in the text before us.
Sheep love to hear their shepherd's voice.
Those who love Jesus and believe in Him hang on to His every word and treasure it in their hearts. Jesus' words are worth hanging on to. His words are full of the Holy Spirit. They are brimming over with His life. You have the words of eternal life.