What happens to Satan after the thousand years are completed?
After the thousand years are completed, Satan is loosed for a little season. He goes out to deceive the nations in the four quarters of the earth, from one end of the planet to the other, activating the free will of new generations born during the millennial reign.
Les explains that Revelation 20 first shows Satan bound by an angel with a great chain and cast into the bottomless pit, shut up and sealed so he should deceive the nations no more for a thousand years. That is the first time Scripture delineates this thousand-year period. When the thousand years are fulfilled, Satan must be loosed a little season. Les then jumps to verse 8, where Satan goes out to deceive the nations in the four quarters of the earth, from one end of this planet to the other. This release activates the free will of the new generations of children born of believers during the perfect thousand-year reign of Christ.