In the old dispensation Israel was surrounded by the heathen, they constantly poured out their fury against the people of God. Satan gathered those nations for battle against Israel. But in the new dispensation he can do this no more, he is bound, God restrains him. O he still goes about like a roaring lion, seeking whom he may devour. But he is hindered from gathering the heathen nations together for battle against camp of the saints. The thousand years referred to in Revelation is not a literal period, it is symbolic, it is a round number, it signifies completeness. So the thousand-year period signifies that Satan will be restrained from deceiving the nations for a complete period of time, determined and decreed by the sovereign Lord. But, shortly before the return of Christ, the devil will be loosed, and gather those heathen nations for a final time against what they conceive to be Christendom. A Christendom though that had actually been corrupted in anti-Christendom. Just like those nations in the old dispensation coming against Jerusalem, not knowing it was of the Lord, to punish the city that had corrupted itself into Sodom and Egypt. So in the end it will also be of the Lord to loose the devil, that he may deceive the nations to attack what they perceive to be Christendom, but has actually become the kingdom of Antichrist.