Revelation 12:8

8 and they did not prevail, nor was their place found any more in the heaven;

Revelation 12:8 Meaning and Commentary

Revelation 12:8

And prevailed not
That is, the dragon, or the devil, and his angels, prevailed not against Michael and his angels; but, on the other hand, were conquered by them, as the above tyrants were by Constantine and Theodosius: some copies read in the singular number, "and he prevailed not", as the Alexandrian copy, the Complutensian edition the Arabic and Ethiopic versions; and other copies in the plural number, "they prevailed not": and as the Vulgate Latin and Syriac versions:

neither was their place found any more in heaven;
in the Roman empire; or "his place", as some copies and versions: this was the time of the judgment of the world, or of the empire as Pagan; Satan the prince of the world, who had long governed in it, was now cast out of all power and authority in it, and all the idol gods in whom he was worshipped, with all the idolatrous priests; nor were there any more any Heathen emperors, for after Constantine's time there was only Julian the apostate, and who reigned but a little while; and after Theodosius, who cleared the empire of Paganism, there never was any, and there is reason to believe there never will be.

Revelation 12:8 In-Context

6 and the woman did flee to the wilderness, where she hath a place made ready from God, that there they may nourish her -- days a thousand, two hundred, sixty.

7 And there came war in the heaven; Michael and his messengers did war against the dragon, and the dragon did war, and his messengers,

8 and they did not prevail, nor was their place found any more in the heaven;

9 and the great dragon was cast forth -- the old serpent, who is called `Devil,' and `the Adversary,' who is leading astray the whole world -- he was cast forth to the earth, and his messengers were cast forth with him.

10 And I heard a great voice saying in the heaven, `Now did come the salvation, and the power, and the reign, of our God, and the authority of His Christ, because cast down was the accuser of our brethren, who is accusing them before our God day and night;