What will happen to the nations when Christ rules and reigns?
When Christ rules and reigns, the nations will be under His rulership, and they will come as a result of His sovereignty, not by Satan's temptation. Satan did not understand this future reality when he offered Jesus control over all the kingdoms of the world.
Les explains that Satan took Jesus to an exceedingly high mountain and showed Him all the kingdoms of the world, offering Him control over all these nations if He would fall down and worship him. But Satan must not have known that one day these same nations will be under Christ's rulership when He rules and reigns. They are going to come as a result of His sovereignty, not through any human power grab or satanic offer. Les suggests there are many things Satan does not know, and this future reality is one of them.