Adam Clarke Bible Commentary
A king over them - A supreme head; some think Mohammed, some think Vespasian.
The angel of the bottomless pit - The chief envoy of Satan.
Abaddon - From אבד abad, he destroyed.
Apollyon - From απο, intensive, and ολλυω, to destroy. The meaning is the same both in the Hebrew and Greek.
Jamieson-Fausset-Brown Bible Commentary
And--so Syriac. But A, B, and Aleph, omit "and."
had--Greek, "have."
a king . . . which is the angel--English Version, agreeing with A, Aleph, reads the (Greek) article before "angel," in which reading we must translate, "They have as king over them the angel," &c. Satan (compare Rev 9:1). Omitting the article with B, we must translate, "They have as king an angel," &c.: one of the chief demons under Satan: I prefer from Rev 9:1, the former.
bottomless pit--Greek, "abyss."
Abaddon--that is, perdition or destruction (Job 26:6; Pro 27:20). The locusts are supernatural instruments in the hands of Satan to torment, and yet not kill, the ungodly, under this fifth trumpet. Just as in the case of godly Job, Satan was allowed to torment with elephantiasis, but not to touch his life. In Rev 9:20, these two woe-trumpets are expressly called "plagues." ANDREAS OF CÆSAREA, A.D. 500, held, in his Commentary on Revelation, that the locusts mean evil spirits again permitted to come forth on earth and afflict men with various plagues.
John Gill Bible Commentary
And they had a king over them,.... Which natural locusts have not, Pro 30:27; by whom is meant the false prophet Mahomet, who was at the head of the Saracens, and led them on to commit the outrages they did; and is believed in by the Turks to this day, as the great prophet of God, and by them preferred to all prophets, not only to Moses, but to Jesus Christ; he is the king of the eastern locusts, as the pope of Rome is the king of the western ones; for the Romish antichrist reigns, or at least has reigned, over the kings of the earth, Rev 17:17;
which is the angel of the bottomless pit; to whom the key of it was given, Rev 9:1;
whose name in the Hebrew tongue is Abaddon, but in the Greek tongue hath his name Apollyon; both which signify a "destroyer"; and are very applicable both to Mahomet, who by his imposture has been the cause of the destruction of multitudes of souls, as well as by his wars, and those of the Saracens and Turks, of the lives of millions, and of the ruin of many kingdoms, countries, cities, and towns. Abulpharagius (w), an Arabic writer, relates, that in the times of the Chalif Al-walid, there was one Hejajus, who had caused to be slain, of the chief and illustrious men, an hundred and twenty thousand, besides others of the common people, and that fell in war; moreover, that there died in his prison fifty thousand men, and thirty thousand women: and the same writer reports (x), that the famous Abu Moslem put to death six hundred thousand men, who were known, besides those that were unknown, and whom he slew in wars and battles: both these instances are taken notice of by Mr. Daubuz, who justly observes, that surely nothing can come near this "Abaddon", but the beast, the son of perdition, Th2 2:3. And to him, the pope of Rome, may the name be truly applied, who has led thousands into perdition, and will go into it himself; and both he, and the false prophet, with the devil, will be east into the lake, which burns with fire and brimstone, and will be tormented for ever and ever, Th2 2:4. "Abaddon", with the Jews, is one of the habitations or apartments of hell (y), because it destroys all; "Apollyon" is the same with "Apollo", the god of the Heathens, who has his name from destroying (z).
(w) Hist. Dynast. p. 129. Dya. 9. (x) lb. p. 140. (y) T. Bab. Erubin, fol. 19. 1. Zohar in Gen. fol. 47. 2. & in Numb. fol. 74. 2. Yalkut Simeoni, par. 2. fol. 47. 3. & 93. 4. Raziel, fol. 14. 2. & 35. 2. (z) Phurnutus de Natura Deorum, p. 92. Macrob. Saturnal. l. 1. c. 17.
Tyndale Open Study Notes
9:11 The king of the locusts is identified in three ways: (1) as the angel from the bottomless pit (probably different from the fallen star, 9:1, who unlocked the abyss rather than coming from it); (2) as Abaddon (“destruction”), often paired with death (see Job 28:22; Ps 88:11); and (3) as Apollyon—the Destroyer (see 1 Cor 10:10). • Although John makes no direct connection between the devil and this king of the locusts, the prince of demons is linked with Satan in the Gospels (Mark 3:22-26; see Matt 12:24-27; Luke 11:15-18). The New Testament also identifies the devil as the prince of this world (John 12:31; 14:30; 16:11) and as the prince of the power of the air (Eph 2:2), so he probably represents Satan. There is also a connection with the Roman emperor Domitian, whose patron god Apollo was symbolized by the locust.