Jamieson, Fausset and Brown on Revelation 9:1

CHAPTER 9

Re 9:1-21. The Fifth Trumpet: The Fallen Star Opens the Abyss Whence Issue Locusts. The Sixth Trumpet. Four Angels at the Euphrates Loosed.

1. The last three trumpets of the seven are called, from Re 8:13, the woe-trumpets.

fall--rather as Greek, "fallen." When John saw it, it was not in the act of falling, but had fallen already. This is a connecting link of this fifth trumpet with Re 12:8, 9, 12, "Woe to the inhabiters of the earth, for the devil is come down," &c. Compare Is 14:12, "How art thou fallen from heaven, Lucifer, son of the morning!"

the bottomless pit--Greek, "the pit of the abyss"; the orifice of the hell where Satan and his demons dwell.