Revelation 9:18

By these three plagues were one third of mankind killed: by the fire, the smoke, and the sulfur, which proceeded out of their mouths.

Revelation 9:15

The four angels were freed who had been prepared for that hour and day and month and year, so that they might kill one third of mankind.

Revelation 9:17

Thus I saw the horses in the vision, and those who sat on them, having breastplates of fiery red, hyacinth blue, and sulfur yellow; and the heads of lions. Out of their mouths proceed fire, smoke, and sulfur.

Treasury of Scripture Knowledge

Summary

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.

The third

Bible References

The third

Revelation 9:15
The four angels were freed who had been prepared for that hour and day and month and year, so that they might kill one third of mankind.