That’s simple to understand. Those who DO His Commandments have the right to the Tree of Life and MAY ENTER the gates into the Kingdom of God.
Those who will find themselves outside the gates and unable to enter are those who are wicked and unrepentant.
It’s simply stating who will and who will not be allowed to enter - not that both the Righteous and the wicked are living in eternity - one inside and one outside the gates. There is no Life outside the gates.
I personally do not subscribe to the doctrine of an eternal soul. I believe in the Resurrection and that Christ has my reward with HIM when He returns.
I understand your position, but you’re essentially saying that God resurrects everybody just to turn around and immediately annihilate them:
Rev 20:12 And I saw the dead, small and great, stand before God; and the books were opened: and another book was opened, which is the book of life: and the dead were judged out of those things which were written in the books, according to their works.
Rev 20:13 And the sea gave up the dead which were in it; and death and hell delivered up the dead which were in them: and they were judged every man according to their works.
Rev 20:14 And death and hell were cast into the lake of fire. This is the second death.
Rev 20:15 And whosoever was not found written in the book of life was cast into the lake of fire.
I disagree, for the reasons previously stated. Can you provide Biblical evidence there’s no life outside the gates? I haven’t seen such evidence. On the contrary, the clear inference is that laundry list of the damned will be there.