Here, on Earth, when something is built there is first an owner of the land. Then an architect, then an engineer, then a contractor, then workmen and finally inspectors from the government. All these folks leave and the owner is again in full control. Sometimes the owner sells the structure, sometimes leases it and sometimes moves in.
When God created the Earth he was everything from owner to architect to worker. He even inspected it and called it “very good” (Genesis 1:31) And on the seventh day the Owner rested. Please notice he did not sell what he had created. He never has and never will.
After these many millennia he has finally scheduled a world wide redevelopment project. It is so comprehensive that he is scraping this part of town and going to start all over again. It is going to be a difficult process. So much so that it is called “the Tribulation” God moves out all the people he loves (and who love Him) so that they won’t be harmed. Much of the project is occupied during this time by derelicts and squatters who have always thought they were the owners. The worst of them, a fellow named Satan, will be in charge, but only in name, during the seven years of renovation.
During this time God will use all sorts of eviction techniques to get the derelicts to join their brothers and sisters at the Owner’s mansion house in Heaven. Most of them won’t go. The Owner will finally have to relocate them all to “the fiery lake of burning sulfur.” (Revelation 19:20)
God finishes the redevelopment after a little over 1,000 years with his Son heading up the project and installs an all-new earth. (Revelation 21:1-27) Those of you who are students of architecture, art, creativity, and design will appreciate that “nothing impure will ever enter it. . . ”
And then the Owner will move back in. “Now the dwelling of God is with men, and he will live with them.”