These hymns from Revelation express something we do not yet see, but which we believe. For now Jesus, the Lamb of God who takes away the sin of the world, rules our hearts by grace through faith. We delight in him and look for his influence in our lives and the lives of our families and friends, our neighbors near and far.
Psalm 22:3 says that God is enthroned on the praises of Israel. So let us enthrone him now in our praises and worship. He is worthy. And we are all the better for his reign here and now, and for all eternity.