Revelation 20:1-3

ASV(i) 1 And I saw an angel coming down out of heaven, having the key of the abyss and a great chain in his hand. 2 And he laid hold on the dragon, the old serpent, which is the Devil and Satan, and bound him for a thousand years, 3 and cast him into the abyss, and shut [it], and sealed [it] over him, that he should deceive the nations no more, until the thousand years should be finished: after this he must be loosed for a little time.