Revelation 9:18
By these three was the third part of men killed, by the fire, and by the smoke, and by the brimstone, which issued out of their mouths.
Cross-reference
Revelation 9:15
Parallel
In Revelation 9:15, four angels are released to kill a third of mankind; here the same slaughter is described, making them direct narrative parallels.
Revelation 9:17
Parallel
This verse repeats the fire, smoke, and brimstone imagery from the previous verse, reinforcing the description of the horses' deadly breath.
Revelation 6:8
Parallel
Revelation 6:8's fourth horseman kills a fourth of the earth; here a third is killed by plagues—both are progressive judgments of death.
Revelation 14:10
Related theme
Revelation 14:10 also features fire and brimstone as instruments of divine punishment, though there it is eternal torment rather than temporal death.
Revelation 16:8
Related theme
Fire from the horses' mouths here and the sun's scorching fire in Revelation 16:8 both serve as divine plagues afflicting mankind.