Revelation 9:18-21

By these three plagues a third of mankind were killed; by the fire and the smoke and the brimstone which issued from their mouths.

Revelation 16:1-21

Then I heard a loud voice which came out of the temple, saying to the seven angels, "Go, empty the seven bowls of the wrath of God upon the earth."

Treasury of Scripture Knowledge

Summary

Therefore he hath poured upon him the fury of his anger, and the strength of battle: and it hath set him on fire round about, yet he knew not; and it burned him, yet he laid it not to heart.

General references

Bible References

He knew

Revelation 9:18
By these three plagues a third of mankind were killed; by the fire and the smoke and the brimstone which issued from their mouths.
Revelation 16:9
And men were scorched with the terrible heat; and they blasphemed the name of the God who had the power over these plagues; yet they repented not, to give him glory.

General references

Matthew 24:39
nor did they know until the deluge came and swept them away; so will be the coming of the son of man.