Revelation 9:11

11. A king over them Unlike the natural locusts, who are a noisy and pestilent democracy.

Abaddon He is King Destruction. For so the Hebrew word signifies. In Job 26:6, and Proverbs 15:11, it seems to designate the place of the destruction of the wicked. So that here the word for sheol, or the abyss, or bottomless pit, is framed into a name for its angel. In Revelation 20:14, death and hades are framed into personalities. Abaddon is translated by our seer into Greek, as Apollyon, Destroyer. As angel of the bottomless pit, bearing its title as his name, and heading the demons of sin swarming through the world, he can hardly be less than Satan himself. Abaddon and his locusts are a plain image of the devil and his angels, Matthew 25:41. This description is a reduction to picture of St. Paul’s “prince of the power of the air, the spirit that now worketh in the hearts of the children of disobedience.”