Rev 8:5-11:19 chiastic structure: the series of seven trumpets
1a) Rev 8:5, Introduction to the seven trumpets series;
The angel took the censer, and he filled it with the fire of the altar, and threw it on the earth. There followed thunders, sounds, lightnings, and an earthquake.
1b) Rev 8:6-12, The first four trumpets sounded;
central axis) Rev 8:13, I saw, and I heard an eagle, flying in mid heaven, saying with a loud voice, “Woe! Woe! Woe for those who dwell on the earth, because of the other voices of the trumpets of the three angels, who are yet to sound!”
2b) Rev 9:1-11:18, The final three trumpets sounded;
1a) Rev 9:1-11, The fifth trumpet sounded;
1b) Rev 9:12, The first woe is past. Behold, there are still two woes coming after this;
1c) Rev 9:13-21, The sixth trumpet sounded/ one third mankind killed + they did not repent;
1a) Rev 9:13-15, Sixth trumpet sounded: four angels bound at Euphrates freed to kill one third of mankind;
1b) Rev 9:16-17a, Number of the horsemen / appearance of the horses + their riders;
1c) Rev 9:17b, Out of their mouths proceed fire, smoke, and sulfur;
central axis) Rev 9:18a, By these three plagues were one third of mankind killed;
2c) Rev 9:18b, By the fire, the smoke, and the sulfur, which proceeded out of their mouths;
2b) Rev 9:19, Power of the horses in their mouths + tails, like serpents, which harm;
2a) Rev 9:20-21, The rest of mankind not killed with these plagues, did not repent.
1d) Rev 10:1-11, The second interval: the testimony of the little book which prophesies;
central axis) Rev 11:1-2, The second interval: measuring the temple;
2d) Rev 11:3-12, The second interval: the testimony of the two witnesses who prophesy;
2c) Rev 11:13, A great earthquake/ 7000 killed, the rest feared + gave glory to God;
2b) Rev 11:14, The second woe is past. Behold, the third woe is coming quickly;
2a) Rev 11:15-18, The seventh trumpet sounded /transfer of kingdoms + Messiah reigns forever;
2a) Rev 11:19, Conclusion to the seven trumpets series;
The temple of God was opened in heaven + ark of His covenant seen in His temple/ And there were lightnings, noises, thunderings, an earthquake, and great hail.
My book The Revelation of Jesus Christ Revealed, based on these studies but greatly expanded, is now available at Revelation Revealed Online. You may also be interested in reading the Book Extras and joining in on the Discussion.