Hello samuel23,
When Paul said, "flesh and blood cannot inherit the kingdom of God, he was speaking in regards to heaven and the dead in Christ resurrecting and the living being changed and caught up and then being taken to the Father's house. They will all have to be changed into those immoral and glorified bodies, free of the sinful nature, to inherit the kingdom of God.
Those in Rev.20:4-6 whom John sees as beheaded, then come to life i.e. resurrect and will rule with him during that thousand years here on this present earth. These are the great tribulation saints mentioned in Rev.7:9-17 who will have died for the testimony of Christ and the word of God. While it is true that anyone that does not worship the beast, his image or receive his mark must be killed, that doesn't mean that everyone is killed. Obviously there will be those who make it through the entire wrath of God and the beasts kingdom alive until Christ returns to the earth to end the age. Otherwise, there would be no Gentiles to enter into the millennial period. And from just the following scripture we do know that there will be Gentile survivors to go into the millennial kingdom:
"He will judge between the nations and will settle disputes for many peoples. They will beat their swords into plowshares and their spears into pruning hooks. Nation will not take up sword against nation, nor will they train for war anymore.
So, as you can see above, when Christ returns to the earth, those great tribulation saints, who will be from many nations, will not train for war anymore. No individual who worships the beast, his image and receives his mark, will be allowed to enter the millennial period, for they will all be killed by that double-edged sword as described in Rev.19:15, 21.
That is something I never really thought of, is the thousand year reign of Christ the kingdom of God? Paul did say that flesh and blood cannot inherit the kingdom of God.
When Paul said, "flesh and blood cannot inherit the kingdom of God, he was speaking in regards to heaven and the dead in Christ resurrecting and the living being changed and caught up and then being taken to the Father's house. They will all have to be changed into those immoral and glorified bodies, free of the sinful nature, to inherit the kingdom of God.
Those that are mentioned in Rev 20 are the believers who refused to take the mark of the Beast, they reigned with Christ for a thousand years. Since everyone had to have the mark of the Beast then who is alive to continue to populate the earth during the thousand years? Just my opinion here, all those who took the mark are doomed, however it may be that children 10 and under were not given the mark and some of them could have survived to repopulate the earth.
Those in Rev.20:4-6 whom John sees as beheaded, then come to life i.e. resurrect and will rule with him during that thousand years here on this present earth. These are the great tribulation saints mentioned in Rev.7:9-17 who will have died for the testimony of Christ and the word of God. While it is true that anyone that does not worship the beast, his image or receive his mark must be killed, that doesn't mean that everyone is killed. Obviously there will be those who make it through the entire wrath of God and the beasts kingdom alive until Christ returns to the earth to end the age. Otherwise, there would be no Gentiles to enter into the millennial period. And from just the following scripture we do know that there will be Gentile survivors to go into the millennial kingdom:
"He will judge between the nations and will settle disputes for many peoples. They will beat their swords into plowshares and their spears into pruning hooks. Nation will not take up sword against nation, nor will they train for war anymore.
So, as you can see above, when Christ returns to the earth, those great tribulation saints, who will be from many nations, will not train for war anymore. No individual who worships the beast, his image and receives his mark, will be allowed to enter the millennial period, for they will all be killed by that double-edged sword as described in Rev.19:15, 21.