11 They have over them as king the angel of the abyss. His name in Hebrew is "Abaddon,"{"Abaddon" is a Hebrew word that means ruin, destruction, or the place of destruction} but in Greek, he has the name "Apollyon."{"Apollyon" means "Destroyer."}
The fifth angel sounded, and I saw a star from the sky which had fallen to the earth. The key to the pit of the abyss was given to him. He opened the pit of the abyss, and smoke went up out of the pit, like the smoke from a{TR adds "great"} burning furnace. The sun and the air were darkened because of the smoke from the pit.
Worthy.Bible » Commentaries » Matthew Henry Commentary » Commentary on Revelation 9
Commentary on Revelation 9 Matthew Henry Commentary
Chapter 9
In this chapter we have an account of the sounding of the fifth and sixth trumpets, the appearances that attended them, and the events that were to follow; the fifth trumpet (v. 1-12), the sixth (v. 13-21).
Rev 9:1-12
Upon the sounding of this trumpet, the things to be observed are,
Rev 9:13-21
Here let us consider the preface to this vision, and then the vision itself.