I’d love to see some verses to support this wrong posit.
“It will be impossible for any person to repent during the 1,000 years because there will not be a person alive on the earth. The righteous will all be in heaven. All the wicked will be laying dead upon the earth. Revelation 22:11, 12 makes it clear that the case of every person is closed before Jesus returns. Those who wait to accept Christ until the 1,000 years begin will have waited too long.”
There will be a huge # of people who survive the tribulation. Maybe a small % of the earth's population, but, for example, the 1/3rd remnant of Israel that will be saved at the very end, as mentioned in Zech 13. Millions of people, plus the gentiles who are judged as sheep.
The judgment of Sheep & Goats Matt: 25:31-32 will separate those who supported Israel from those who did not. Those who did not will be turned into hell, those who did will continue to live on planet earth. They're still human beings, there's no indication that they get a new body at this point.
Christ will rule in the Millennium with a "Rod of Iron" or "rod of his mouth" as mentioned in Isa 11. Meaning a theocracy, where he'll punish sin. If sin weren't possible, then there would be no need of a rod. Zechariah 14 says that if people don't keep the feast of tabernacles (pay homage to Christ in Jerusalem), then he'll cut off their rain. So it's not really debatable whether people will sin, they will. And if they sin, they'll be given the opportunity to repent. If there were no opportunity, Jesus wouldn't put a plague on them, he'd kill them.
Believers will not all "be in heaven". They will return from heaven with Christ at his second coming, and will reign with him. I believe that means believers will manage what will soon be a gigantic population, everyone will have a job or responsibility. The advantage of being a believer at this point is two-fold: you can't sin, you're in a glorified body, which means you can not only be with Christ in Jerusalem, but you can also go to Heaven and be in the presence of the father. People on earth, still bound in sinful flesh, will not be able to do that yet.
Blessed and holy is he that hath part in the first resurrection: on such the second death hath no power, but they shall be priests of God and of Christ, and shall reign with him a thousand years.
- Rev 20:6
Once Christ returns, the earth will be restored to an Edenic condition. People will live long lives. Some may live the entire 1000 years. Isaiah 65 tells us a lot about this time, in addition to Revelation. If someone dies at 100 years old, they'd die as a child. Isaiah says a person's life would be more like a tree, and we know trees can live hundreds of years.There won't be sickness or disease. Child bearing will be easy, so the population will explode. By the end of the millenium, there will likely be billions of people. Unfortunately, a good # of those people will rebel at the end of time when satan is loosed from his prison.
I think scripture is saying that believers' "ruling" is that they'll rule the population during this time. Not with a rod of iron, that is Christ's job. But rather to lead, manage, encourage and evangelize the people on earth to be believers as well. To make sure they keep the Feast of Tabernacles, and to prepare them for the day when Satan is unleashed for the final time.
How someone worked for Christ in their mortal life will determine what their status is in this next life. If they were faithful, they'll have a position of greater authority. So the faithful believer who spent his life in service to God might be, for example, the leader of a country (Isaiah, Zechariah, etc make it plain that there will be "nations" at this time). On the other hand, the selfish Christian who did very little for God may find himself in charge of only a small # of people, perhaps a local mayor to use terms we know. Jesus mentions this in his "talents" parable. If not directly, undeniably in principle.