Rev. 20:1 And I saw an angel coming down out of heaven, having the key to the Abyss and holding in his hand a great chain. 2 He seized the dragon, that ancient snake, who is the devil, or Satan, and bound him for a thousand years. 3 He threw him into the Abyss, and locked and sealed it over him, to keep him from deceiving the nations any more until the thousand years were ended. After that, he must be set free for a short time.
4 I saw thrones on which were seated those who had been given authority to judge. And I saw the souls of those who had been beheaded because of their testimony about Jesus and because of the word of God. They had not worshipped the beast or its image and had not received its mark on their foreheads or their hands. They came to life and reigned with Christ for a thousand years. 5 (The rest of the dead did not come to life until the thousand years were ended.) This is the first resurrection. 6 Blessed and holy are those who share in the first resurrection. The second death has no power over them, but they will be priests of God and of Christ and will reign with him for a thousand years.
7 When the thousand years are over, Satan will be released from his prison 8 and will go out to deceive the nations in the four corners of the earth – Gog and Magog – and to gather them for battle. In number they are like the sand on the seashore. 9 They marched across the breadth of the earth and surrounded the camp of God’s people, the city he loves. But fire came down from heaven and devoured them.
What does Scripture actually teach? No Scripture stands alone but is always related to prophecy & fulfilment.
Jesus said a lot about binding Satan, note particularly John 12 -
20 Now there were some Greeks among those who went up to worship at the festival. 21 They came to Philip, who was from Bethsaida in Galilee, with a request. ‘Sir,’ they said, ‘we would like to see Jesus.’ 22 Philip went to tell Andrew; Andrew and Philip in turn told Jesus.
23 Jesus replied, ‘The hour has come for the Son of Man to be glorified. 24 Very truly I tell you, unless a grain of wheat falls to the ground and dies, it remains only a single seed. But if it dies, it produces many seeds.
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30 Jesus said, ‘This voice was for your benefit, not mine. 31 Now is the time for judgment on this world; now the prince of this world will be driven out. 32 And I, when I am lifted up from the earth, will draw all people to myself.’
Before Calvary, only one people group comprised the "people of God." At Calvary,
the prince of this world will be driven out. So the nations would be drawn to Jesus. How that works out becomes clear over the next few weeks, with the great commission to all nations.
Satan is bound & his captives, both Jew & Gentile are freed by the Gospel. Christ ascends to his heavenly throne, but commissions the Apostles & the church down the centuries to call sinners from all nations into his heavenly kingdom. Note the conditions during the millennium -
John sees the
souls of the martyrs. The first resurrection is not a bodily resurrection - it is salvation. See John 5:24-30. That spiritual resurrection is distinct from the last day resurrection.
Your posts claim -
Rev. 20 says at the end of the millennium the number of the wicked is as
the sand on the seashore. Clearly it cannot be a "golden age" with no wars etc. It is clearly the present age.
The general resurrection at the return of Christ is described in Rev. 20:11 onwards & corresponds to the same general resurrection described in John 5:28-30.