Albert Barnes' Notes on the Whole Bible - Revelation 20:1
And I saw an angel come down from heaven - Compare the notes on Revelation 10:1. He does not say whether this angel had appeared to him before, but the impression is rather that it was a different one. The whole character of the composition of the book leads us to suppose that different angels were employed to make these communications to John, and that, in fact, in the progress of things disclosed in the book, he had contact with a considerable number of the heavenly inhabitants. The scene... read more
The Pulpit Commentary - Revelation 20:2-3
And he laid hold on the dragon, that old serpent, which is the Devil, and Satan. These titles are an exact repetition of Revelation 12:9 (which see). And bound him a thousand years, and cast him into the bottomless pit . The abyss, as we have seen (on Revelation 12:1 ), is the present abode of Satan; the act of binding, therefore, is now over. This fact opposes the interpretation which makes "the thousand years" yet in the future. When, then, did this binding take place? Only one... read more