The final three bowl judgments all have political consequences.
16:12 The problem that this judgment poses for earth-dwellers is not a result of the judgment itself but its consequences, namely, war. It does not inflict a plague on people but serves as a preparation for the final eschatological battle.520The Euphrates River is the northeastern border of the land God promised to Abraham's descendants (Gen. 15:18; Deut. 1:7; 11:24; Josh. 1:4).521Now God dries up this river that had previously turned into blood (v. 4) so the kings of the East can cross with their armies (cf. Dan. 11:44; Isa. 11:15). God earlier dried up the Red Sea so the Israelites could advance on the Promised Land from the west (Exod. 14:21-22; cf. Isa. 11:16). He also dried up the Jordan River so they could cross over from the east (Josh. 3:13-17; 4:23). Elijah too parted the waters of the Jordan (2 Kings 2:8). Cyrus may have conquered Babylon by draining the Euphrates and marching into the city over the riverbed (cf. Jer. 50:38; 51:36).522All these previous incidents should help us believe that a literal fulfillment of this prophecy is possible.
Some interpreters believe this is an Oriental invasion of Babylon in the future that will be similar to Cyrus' invasion of it in the past.523However, these are probably the Oriental armies that will assemble in Israel for the battle of Armageddon referred to in verses 13-16.524The drying up of the Euphrates will be an immediate help to these advancing armies, but it will set them up for defeat, as was true of Pharaoh's army.
". . . in the Old Testament a mighty action of God is frequently associated with the drying up of waters, as the Red Sea (Ex. xiv. 21), the Jordan (Jos. iii. 16 f.), and several times in prophecy (Is. xi. 15, Je. li, 36, Zc. x. ll)."525
"A more immediate suggested identification of the kings from the east (i.e., the rising of the sun') could be the Parthian rulers who were a continual threat to Rome during John's day, but this was hardly a factor in preparation for the battle of Harmagedon in 16:16."526
Presently some sections of the Euphrates River are dry at certain times of the year due to dams that Iraq has built to create reservoirs. These dams generate power for the Middle East. Perhaps when the Euphrates dries up even artificial light will end in that region.
16:13 Verses 13-16 give further comments on the sixth bowl judgment. They are not an interlude between the sixth and seventh bowls (except verse 15). They reveal that rulers from all over the earth will join the kings of the East in a final great conflict.
The dragon, beast, and false prophet will evidently join in making a proclamation that will mobilize the armies of the world to converge on Palestine. Something proceeding from the mouth suggests a proclamation. This is the first mention of the false prophet, but he is clearly the beast out of the earth (cf. 13:11-17). He deceives the people. What he urges them to do for their advantage results in their destruction eventually.
The three unclean spirits that proceed from their mouths, the agents of this diabolical trio, are demons (fallen angels, v. 14; cf. Matt. 10:1; Mark 1:23-24; 3:11; 5:2, 13; Acts 5:16; 8:7). They resemble frogs in that they are unclean and loathsome (cf. Lev. 11:10-11, 41). The second Egyptian plague involved frogs (Exod. 8:5), but these demons are only like frogs.
16:14 Here John identified the spirits as demons. The demons go out to the kings of the earth deceiving them to assemble their armies in Palestine for the battle of Armageddon. A deceiving spirit earlier lured King Ahab into battle (1 Kings 22:21-23). They will do this under the influence of Satan, the beast, and the false prophet. The demons persuade them, but their decision is something that God, the ultimate cause, puts in their hearts (17:17).
It may also be the advancing army from the east that moves these kings to assemble for war.527These kings from all over the world will gather to destroy Israel (cf. Ps. 2:1-3; Joel 2:11; 3:2; Zech. 14:2-3). Satan's purpose in bringing all these soldiers into Palestine in the first place appears to be to annihilate the Jews. When Jesus Christ returns to earth, specifically to the Mount of Olives (Zech. 14:1-4), they will unite in opposing Him. However God's sovereign hand will be regulating Satan's activities (Zech. 14:2). This will not be the day of Satan's triumph but that of the Lord God Almighty. He will show Himself supreme in this climactic battle (cf. Joel 2:31).528The description of this battle follows in 19:11-16.
16:15 Jesus Christ Himself evidently gave this parenthetic invitation and warning (cf. 3:3, 18). His second coming will be as a thief in that it will be sudden, and His enemies will not expect it (cf. Matt. 24:43; Luke 12:39; 1 Thess. 5:2). Believers who understand the revelation of this book, on the other hand, will be expecting His return.529Jesus Christ urged these faithful believers to be watchful and pure (cf. Matt. 25:1-30).530The alternative is embarrassment (cf. Exod. 20:26; Lev. 18:6-19; Deut. 23:14; Isa. 47:3; Ezek. 16:37; 23:24-29; Hos. 2:10; Nah. 3:5). This is the third of the seven beatitudes in Revelation (cf. 1:3; 14:13; 19:9; 20:6; 22:7, 14).
Another interpretation sees this encouragement as directed to the Christian readers of this prophecy during the church age, before the Tribulation begins. Advocates of this view point out that by the sixth bowl believers who have not taken refuge (12:13-17) will have suffered martyrdom (13:15; 14:1-5, 13; 15:2). Therefore, according to this view, there will be no believers on the earth by the time the sixth bowl judgment occurs.
"The close similarity to 3:3, 18 and the parenthetical nature of the announcement favor the latter alternative [i.e., this view]."531
I think this verse is a general word of encouragement addressed to believers in the Great Tribulation, in view of the context, but applicable to believers in the church age. If believers do not understand that Jesus Christ will return very soon, they may behave in ways that will be embarrassing when He does return, at the Rapture or the Second Coming.
16:16 "And"(Gr. kai) resumes the exposition of the sixth bowl judgment from verse 14. The demons will assemble the kings of the earth and their armies. They will go to what in Hebrew is called "Har-Magedon"(lit. mountain of Megiddo, Megiddo meaning either place of troups or place of slaughter). John was writing to Greek-speaking readers who were generally unfamiliar with Palestinian geography (cf. 9:11).
This mountain may refer to the small hill on the south-central edge of the Jezreel (Esdraelon) Valley in northern Palestine on which the town of Megiddo stood. Alternatively, "Har-Magedon"may refer to the mountain closest to Megiddo, namely, Mt. Carmel. There God humiliated the host of prophets of Baal who gathered to oppose Him in Elijah's day (cf. 1 Kings 18:16-40). God and Elijah slaughtered them in the Valley of Jezreel. Mt. Tabor is another prominent hill (1,850 feet high) at the east end of this valley. Some believe it is the mountain in view here.532Probably Har-Magedon refers to the hill country surrounding Megiddo that includes all the mountains that border the approximately 14 by 20 mile Valley of Jezreel. Earlier Deborah and Barak had defeated the Canaanites in this valley (Judg. 4-5), and Gideon had routed the Midianites (Judg. 7). King Josiah also died there when he opposed Pharaoh Neco (2 Chron. 35:22).
"The plain of Megiddo is admittedly not large enough to contain armies from all over the world, so this must be the assembly area for a much larger deployment that covers a two hundred mile distance from north to south and the width of Palestine from east to west (cf. 14:20). Some decisive battles against this massive force will probably occur around Jerusalem (Zech. 14:1-3)."533
A less literal view sees the name standing for an event rather than any single locality.534