And he laid hold on the dragon, that old serpent, who is the Devil, and Satan, and bound him a thousand years,
All Commentaries on Revelation 20:2 Go To Revelation 20
Augustine of Hippo
AD 430
and bound him. The Lord Jesus Christ Himself says, No man can enter into a strong man's house, and spoil his goods, except he first bind the strong man (Matt. 12:29) — meaning by the strong man the devil, because he had power to take captive the human race; and meaning by his goods which he was to take, those who had been held by the devil in various sins and iniquities, but were to become believers in Himself. It was then for the binding of this strong one that the apostle saw here. bound him: But the binding of the devil is his being prevented from the exercise of his whole power to seduce men, either by violently forcing or fraudulently deceiving them into taking part with him. If he were during so long a period permitted to assail the weakness of men, very many persons, such as God would not wish to expose to such temptation, would have their faith overthrown, or would be prevented from believing; and that this might not happen, he is bound. For the Almighty does not absolutely seclude the saints from his temptation, but shelters only their inner man, where faith resides, that by outward temptation they may grow in grace. And He binds him that he may not, in the free and eager exercise of his malice, hinder or destroy the faith of those countless weak persons, already believing or yet to believe, from whom the Church must be increased and completed;
Now the devil was thus bound not only when the Church began to be more and more widely extended among the nations beyond Judea, but is now and shall be bound till the end of the world, when he is to be loosed. Because even now men are, and doubtless to the end of the world shall be, converted to the faith from the unbelief in which he held them. (City of God 20.7)