Now at midnight the Lord struck every firstborn male in the land of Egypt, from the firstborn of Pharaoh who sat on his throne to the firstborn of the prisoner who was in the dungeon, and every firstborn of the livestock.

I will strike them with a plague and destroy them. Then I will make you into a greater and mightier nation than they are.”

Then Moses told Aaron, “Take your firepan, place fire from the altar in it, and add incense. Go quickly to the community and make atonement for them, because wrath has come from the Lord; the plague has begun.”

He cleared a path for His anger.
He did not spare them from death
but delivered their lives to the plague.

The Lord is a jealous and avenging God;
the Lord takes vengeance
and is fierce in wrath.
The Lord takes vengeance against His foes;
He is furious with His enemies.

And

Then the earth shook and quaked;
the foundations of the mountains trembled;
they shook because He burned with anger.

Burning coals

They will be weak from hunger,
ravaged by pestilence and bitter plague;
I will unleash on them wild beasts with fangs,
as well as venomous snakes that slither in the dust.

General references

He obscures the view of His throne,
spreading His cloud over it.

His breath sets coals ablaze,
and flames pour out of his mouth.

Fire goes before Him
and burns up His foes on every side.