Isaiah continues his pronouncement of God's judgment that will fall on Babylon both in the near future and also at the end of the tribulation period. Lucifer's original fall is…
Make a joyful noise unto the LORD, all ye lands. Serve the LORD with gladness: come before his presence with singing. Know ye that the LORD he is God: it is he that hath made us, and not we ourselves; we are his people, and the sheep of his pasture. ~ Psalm 100:1-3