Then the sixth angel blew his trumpet. I heard a voice coming from the four corners of the gold altar standing before God. 1
References for Revelation 9:13
9.13 Ex 30.1-3.
The voice said to the sixth angel, "Release the four angels who are bound at the great Euphrates River!"
The four angels were released; for this very hour of this very day of this very month and year they had been kept ready to kill a third of all the human race.
I was told the number of the mounted troops: it was two hundred million.
And in my vision I saw the horses and their riders: they had breastplates red as fire, blue as sapphire, and yellow as sulfur. The horses' heads were like lions' heads, and from their mouths came out fire, smoke, and sulfur. 2
References for Revelation 9:17
+29.17 Ws 11.17, 18.
A third of the human race was killed by those three plagues: the fire, the smoke, and the sulfur coming out of the horses' mouths.
For the power of the horses is in their mouths and also in their tails. Their tails are like snakes with heads, and they use them to hurt people.
The rest of the human race, all those who had not been killed by these plagues, did not turn away from what they themselves had made. They did not stop worshiping demons, nor the idols of gold, silver, bronze, stone, and wood, which cannot see, hear, or walk. 3
References for Revelation 9:20
9.20 Ps 115.4-7; 135.15-17; Dn 5.23.
Nor did they repent of their murders, their magic, their sexual immorality, or their stealing.