Revelation 9:15

And the four angels were loosed, who were in readiness for the hour, and day, and month, and year, to slay the third part of men.

Revelation 8:7

And the first sounded, and there followed hail and fire mingled with blood, and they were cast upon the earth; and the third part of the earth was burnt up, and the third part of the trees was burnt up, and all green grass was burnt up.

Revelation 9:18

By these three plagues was the third part of men killed, by the fire, and the smoke, and the brimstone, which issued out of their mouths.

Revelation 8:9

and the third part of the sea became blood; and the third part of the creatures which were in the sea, and had life, died; and the third part of the ships were destroyed.

Revelation 8:11-12

And the name of the star is called Wormwood; and the third part of the waters became wormwood; and many men died of the waters, because they were made bitter.

Revelation 9:5

and it was given to them that they should not kill them, but that they should be tormented five months; and their torment was as the torment of a scorpion, when it hath struck a man.

Revelation 9:10

And they have tails like scorpions, and stings; and in their tails is their power to hurt men five months.

Treasury of Scripture Knowledge

Summary

And the four angels were loosed, which were prepared for an hour, and a day, and a month, and a year, for to slay the third part of men.

An hour

Bible References

An hour

Revelation 9:5
and it was given to them that they should not kill them, but that they should be tormented five months; and their torment was as the torment of a scorpion, when it hath struck a man.

For to

Revelation 9:18
By these three plagues was the third part of men killed, by the fire, and the smoke, and the brimstone, which issued out of their mouths.
Revelation 8:7
And the first sounded, and there followed hail and fire mingled with blood, and they were cast upon the earth; and the third part of the earth was burnt up, and the third part of the trees was burnt up, and all green grass was burnt up.