The Word says satan will be released for a time after the 1,000 years. There will be rebellion.
Isn’t it amazing, that Jesus will be physically on the earth, ruling with a rod of iron, and there could be millions, who see him and still don’t believe. But then again, he walked the earth before, and most people didn’t believe him. Why should it be any different, in the millennium? My opinion is, that all those who physically survive the Tribulation, will be gathered, and only true believers will be allowed to enter the kingdom. All unbelievers will be killed by God. No unbelievers will be allowed into the kingdom, and false religions will not be allowed on the earth. Then, live, mortal believers will start having sex again. (oh the horror of it all) 😁 It is some of the children of the believers, who won’t believe, and will rebel. That’s my opinion.
Yes, I was actually referring to possibilities beyond the 1,000 years into the unknown future.
That final rebellion, IMHO, will be sheer madness at a level probably never seen before. They will attempt to attack Christ Himself while He’s in Jerusalem on His Rightful Throne.
The numbers of those (billions?) will be staggering that try to.