Why is Satan loosed for a little season after the thousand years?

Les explains that Satan is bound and cast into the bottomless pit for the thousand-year period. He is not sent to the Lake of Fire at that time because the Lake of Fire is a place of eternity, and Satan is not ready for eternity yet. He has one more opportunity at the end of the thousand years. The text says he is shut up and sealed so that he should deceive the nations no more until the thousand years are fulfilled. After that, he has to be loosed for a little season. When released, he has full freedom to deceive the nations that will be back on the scene. Les teaches that Satan must again have the opportunity to test the new generations that come on the scene in that kingdom economy. In other words, the millennium becomes another period of testing. There have already been six periods of testing through human history, and this one has to be the seventh, because God always does things in seven, so there has to be a seventh period of testing the human race.