It happened at midnight -- the Lord attacked all the firstborn in the land of Egypt, from the firstborn of Pharaoh who sat on his throne to the firstborn of the captive who was in the prison, and all the firstborn of the cattle.

I will strike them with the pestilence, and I will disinherit them; I will make you into a nation that is greater and mightier than they!"

Then Moses said to Aaron, "Take the censer, put burning coals from the altar in it, place incense on it, and go quickly into the assembly and make atonement for them, for wrath has gone out from the Lord -- the plague has begun!"

He sent his anger in full force; he did not spare them from death; he handed their lives over to destruction.

The Lord is a zealous and avenging God; the Lord is avenging and very angry. The Lord takes vengeance against his foes; he sustains his rage against his enemies.

And

The earth heaved and shook; the roots of the mountains trembled; they heaved because he was angry.

Burning coals

They will be starved by famine, eaten by plague, and bitterly stung; I will send the teeth of wild animals against them, along with the poison of creatures that crawl in the dust.

General references

He conceals the face of the full moon, shrouding it with his clouds.

Its breath sets coals ablaze and a flame shoots from its mouth.

Fire goes before him; on every side it burns up his enemies.