Context & Key Themes
Chapter 15 is short and almost entirely preparatory. It is the threshold of the third and final cycle of seven — after the seven seals and the seven trumpets, now come the seven bowls of the wrath of God, in which God’s wrath is finished. But before the bowls are poured out, the chapter pauses to show two things: the victorious saints standing on a sea of glass mingled with fire, singing the song of Moses and of the Lamb; and the heavenly temple itself opening to send out the seven angels with the seven last plagues. The pattern is the same as the opening of the seal sequence in chapter 4 and the opening of the trumpet sequence in chapter 8 — worship and the heavenly setting precede the judgments. The bowls that follow are the most severe judgments in the book, no longer striking only a third but striking in full, and the chapter wants the reader to know before they begin that the One pouring them out is just and true, and that the saints who endured to the end are already standing victorious in His presence.
Key Verses
“Great and amazing are your deeds, O Lord God the Almighty! Just and true are your ways, O King of the nations!” — Revelation 15:3
“Who will not fear, O Lord, and glorify your name? For you alone are holy.” — Revelation 15:4
Summary
John sees another sign in heaven, great and amazing: seven angels with seven plagues, which are the last, for with them the wrath of God is finished. The phrase “with them the wrath of God is finished” is significant — the bowls bring this cycle of judgment to its completion, and the chapters that follow will move toward the return of the King and the final consummation. He also sees what appeared to be a sea of glass mingled with fire — echoing the sea of glass before the throne in chapter 4, but now mingled with the fire of judgment about to fall.
Standing beside the sea of glass with harps of God in their hands are those who had conquered the beast and its image and the number of its name. They sing the song of Moses, the servant of God, and the song of the Lamb. The combination is deliberate. The song of Moses was sung at the Red Sea after God delivered Israel from Egypt and judged Pharaoh — the original archetype of God’s deliverance of His people through judgment on the oppressor. The song of the Lamb is the new song of redemption purchased by His blood. The two songs together name the same God acting in the same way across both covenants: rescuing His people through the judgment of the powers that enslave them.
They sing: “Great and amazing are your deeds, O Lord God the Almighty! Just and true are your ways, O King of the nations! Who will not fear, O Lord, and glorify your name? For you alone are holy. All nations will come and worship you, for your righteous acts have been revealed.” The song affirms several things at once. God’s deeds are great and amazing. His ways are just and true. He is the King of the nations — not just of Israel, not just of the church, but of every people. He alone is holy. And the result of His righteous acts being revealed will be that all nations will come and worship Him. Even in the chapter that prepares for the final plagues, the horizon is the worship of the nations, not their annihilation.
After this John looks, and the sanctuary of the tent of witness in heaven is opened, and out of the sanctuary come the seven angels with the seven plagues, clothed in pure, bright linen, with golden sashes around their chests. The imagery deliberately echoes the priestly garments — these angels are bearing out the holy judgments of God in priestly purity. One of the four living creatures gives the seven angels seven golden bowls full of the wrath of God who lives forever and ever. And the sanctuary is filled with smoke from the glory of God and from His power, and no one can enter the sanctuary until the seven plagues of the seven angels are finished. The smoke recalls the cloud of glory that filled the tabernacle when it was first dedicated and the temple at its consecration — the manifest presence of God. The detail that no one can enter until the plagues are finished underlines that what is about to happen is fully God’s sovereign act; no creaturely intercession can interrupt it.
Reflection
This chapter is short, but it is the doorframe through which the rest of the book will pass. Several things are placed in front of the reader before the bowls are poured out, and they are placed there for a reason. First, the saints have already won. Before the final plagues fall, John sees the victorious ones standing in the presence of God, harps in their hands, singing songs of praise. Whatever the bowls bring, the conquerors of the beast are not in the path of the bowls; they are already on the other side. Second, the song they sing is the song of Moses and of the Lamb together. The God who delivered through the Red Sea and the God who redeemed through the cross is one God acting in one way, and what the church sings at the end of all things is the same song the redeemed have always sung. Third, the angels who bear the bowls are clothed in priestly purity. These judgments are not the rage of an arbitrary tyrant; they are the holy acts of a holy God carried out by His messengers in priestly garments. Fourth, the sanctuary fills with the smoke of glory, and no one can enter until the work is finished. What is about to happen is irreversible and untouchable, and it is also entirely God’s. The horizon of the chapter, before any bowl is poured, is the day when all nations will come and worship Him for His righteous acts have been revealed.