As you can see it repeats the description of how each meets its end at the fire, and what happens as Christ comes, and the results up to the New Jerusalem, the city of God. Read it carefully and you will see..
If we consider the time span of Rev 19, it begins with the giving of a dominion and a kingdom to Christ in Heaven, it then describes the wedding feast of Christ's. Then after 1,000 years have passed and the Bottomless Pit is unlocked, the end of Chapter 19 of the Book of Revelation ends its account with Jesus descending to make war with the beast and the false prophet, their capture and dispatching into the Lake of fire.
If we now consider the time span of Rev 20, it begins with Satan, after he is judged in heaven and coming down to the earth, an angel imprisons him in the bottomless pit, where we are told in Isaiah 24:21-22 the judged kings of the earth, the beast, the false prophet along Satan will be imprisoned for many days to await the time of their punishment. Then we are told that Christ will establish His Priestly Rule in heaven with the Saints who have lost their heads for His sake for 1,000 years. After the 1,000 years ends, the Bottomless pit is unlocked and Satan because his time is short, goes out to make war on the earth to then end up surrounding Jerusalem before he is also captured and dispatched into the Lake of Fire where the Beast and the False Prophet have also recently been dispatched into as well.
It is after this that the time of the Great White Throne Room Judgement of all of the peoples of the earth begins and the division of the righteous and the unrighteous occurs. The righteous to be given the earth while the unrighteous are dispatched also into the Lake of Fire.
Then the Second death and Hades were dispatched into the Lake of Fire.
In the time span of Rev 20 begins with, "Then I saw a
renewed/refurbished heaven and a
renewed/refurbished earth, for the original heaven and earth had been cleansed and renewed, and the 'whole sea of humanity' was no more, as it had been stripped of the unrighteous."
Then a renewed Jerusalem descends down from Heaven from God, prepared as a bride adorned for her husband.
And I heard a loud voice from the throne saying:
“Behold, the dwelling place of God is with man,
and He will dwell with them.
They will be His people,
and God Himself will be with them as their God
‘He will wipe away every tear from their eyes,’
and there will be no more death
or mourning or crying or pain,
for the former things have passed away.”
God, seated on His throne among the people will declare,
“Behold, I make all things like new again.”
“It is done! I am the Alpha and the Omega, the Beginning and the End. To the thirsty I will give freely from the spring of the water of life. The one who overcomes will inherit all things, and I will be his God, and he will be My son."