Now that the beast and the false prophet have been defeated, John sees another vision which starts in chapter 20. John sees an angel bind up Satan with chains and seal him in a pit. For one thousand years (the Millennium), Satan will not be able to deceive humankind any longer. Ominously, though, Satan will be released at the end of the Millennium one last time. Bible scholars differ over whether the one thousand years should be taken literally, but it seems clear that regardless of the actual length of time, the one thousand years describes a fixed amount of time determined by God.
John then describes an earthly kingdom which will be ruled by Christ and his saints. In particular, those saints who were martyred by the beast because of their allegiance to Christ will reign with him during the Millennium. How will Christ’s deceased saints rule with him? They are resurrected! God will give all believers throughout human history resurrected bodies to live, rule, and serve as priests with Christ in the Millennium. Those who are resurrected will never die again; they will live forever with Christ.
Grant Osborne, in Revelation, Baker Exegetical Commentary on the New Testament, notes that verses 4-6 in chapter 20 emphasize the vindication of the saints:
“The second part (20:4–6) stresses another major theme of the book, the vindication of the saints. In Matt. 19:28 Jesus promised the disciples they would sit on ‘twelve thrones judging the twelve tribes.’ In 1 Cor. 6:2 Paul says the saints ‘will judge the world.’ Then in Rev. 2:26 the saints will have ‘authority over the nations,’ and in 3:21 they ‘will sit with [Christ] on his throne.’ This prepares for 6:9–11, where the martyred saints are promised that at the proper time they would be vindicated. That vindication took place in stages, from the storm theophany of 6:12–17 to the outpouring of wrath in 8:3–5 to the destruction of Babylon the Great in chapters 17–19. But it is finalized in 20:4–6, where the saints sit on thrones and judge the nations for the thousand-year period.
Also populating the earth during the Millennium are those who were aligned with the beast before his demise and their descendants. They will live in their natural bodies under the rule of Christ and his resurrected saints during the Millennium. Remember that only the Antichrist’s armies were killed in the battle of Armageddon.
After the Millennium ends, Satan will be released from prison one last time, and he will deceive the people of the earth (not the resurrected saints). A leader called Gog, from a land called Magog, will gather a massive army and march on the city of Jerusalem, the city where Jesus lives and rules. Before they can enter the city, God rains down fire on them, and they are all killed. God then throws Satan into the lake of fire with the beast and false prophet where they “will be tormented day and night forever and ever.”
George Eldon Ladd, in A Commentary on the Revelation of John, notes the parallels between Ezekiel 36-39 and argues that Revelation 20 is the fulfillment of Ezekiel’s prophecy.
Gog and Magog are biblical names for the nations who are rebellious against God and hostile to his people. In Ezek. 38:1, Gog is the prince of the land of Magog and comes from the north in the latter days to do battle with God’s people. In Revelation, both words represent the hostile nations.
While the New Testament has little to say about a temporal messianic kingdom, Ezekiel’s prophecy has the same basic structure as Rev. 20. Chapters 36–37 picture the salvation of Israel, restored to their land and blessed with the messianic salvation (see 36:24–29). The goal of the prophetic expectation, ‘you shall be my people, and I will be your God’ (Ezek. 36:28) is now realized. David, God’s servant, will rule over his people, and God will dwell in their midst (37:25, 28). However, the blessing of the messianic kingdom is not the end. The kingdom is disturbed by an eschatological war led by Gog from Magog (chapters 38–39); and only after the divine victory do we have a picture of the eternal new order, which in Ezekiel is described in terms of a rebuilt temple in the new Jerusalem (chapters 40–48). This structure of a temporal messianic kingdom followed by the eternal kingdom in the new age is the same as that in Revelation.
Why will there be a temporal, earthly kingdom under Christ’s rule? Why allow Satan to deceive the world again? Ladd answers:
In the present instance, even after Christ himself has reigned over men during the millennium, when the deceiver is set free from his prison, he finds the hearts of men still responsive to his seductions. This makes it plain that the ultimate root of sin is not poverty or inadequate social conditions or an unfortunate environment; it is the rebelliousness of the human heart. The millennium and the subsequent rebellion of men will prove that men cannot blame their sinfulness on their environment or unfortunate circumstances; in the final judgment, the decrees of God will be shown to be just and righteous.
For a thousand years, those among the nations who worshiped the beast will be under Jesus’ sovereign control and ruled by the saints. They will not experience Satan or be deceived in any way by him. All they will experience is the benign rule of Jesus himself. Yet after fourteen lifetimes of enforced good (according to the text, i.e., the story form), as soon as Satan is released, they allow themselves to be ‘deceived’ all over again and follow him. The purpose is to prove the power of total depravity and demonstrate once and for all the necessity of eternal punishment. The millennium is the judicial evidence that will convict the earth-dwellers and prove that their eternal sin demands eternal punishment. In other words, 20:3c and 20:7–10 are the divine ‘must’ of a just God.
John has told us the fate of the beast, the false prophet, and Satan himself. But what will happen to the people who, throughout human history, rejected God while they were alive, but are now deceased?
John’s vision moves to a great white throne upon which God sits (compare the following verses to Daniel 7: 9, 10, 22). The entire physical universe ceases to exist. All the unrighteous dead are resurrected and join the already resurrected believers. Both the saints and the wicked stand before God where He reviews the books which contain their deeds.
John then mentions another book, the book of life. This book lists all the saved people of God. The only way for a person to be saved is through the blood of the Lamb of God, Jesus Christ. Every person whose name is not found in the book of life is sent to the lake of fire. Death itself is also thrown into the lake of fire, meaning that no saved person will ever die again.
Mark Wilson, in Hebrews to Revelation: Volume Four (Zondervan Illustrated Bible Backgrounds Commentary), connects these verses to the book of Daniel:
Daniel prophesied that ‘everyone whose name is found written in the book—will be delivered’ (Dan. 12:1). The deliverance promised to the righteous dead is everlasting life (12:2). The victors in Sardis are promised that their names would not be erased from the book of life (Rev. 3:5). The primary act disqualifying the earth dwellers from inclusion in the book of life is worshiping the beast rather than the Lamb (cf. 13:8; 17:8). The consequence of omission from the book of life is being thrown into the lake of fire. An angel has earlier warned those who worship the beast that eternal torment with burning sulfur would be their fate (14:10–11). That moment has finally arrived. . . .
The dead, who are excluded from the first resurrection, are the multitudes spoken of by Daniel who will awaken to shame and eternal contempt (Dan. 12:2). Upon hearing the voice of the Son of Man, those practicing evil will come out of their graves to be condemned to the resurrection of judgment (John 5:28–29). The second death is the punishment Jesus warned about: ‘Rather, be afraid of the One who can destroy both soul and body in hell’ (Matt. 10:28). Death and Hades are the last to be thrown into the lake of fire. He who holds the keys of death and Hades has finally turned the lock (cf. Rev. 1:18). This picture accords with Paul’s statement, ‘The last enemy to be destroyed is death’ (1 Cor. 15:26).