At midnight the LORD struck down 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 dungeon, and all the firstborn of the livestock.

I will strike them with the pestilence and disinherit them, and I will make of you a nation greater and mightier than they."

And Moses said to Aaron, "Take your censer, and put fire on it from off the altar and lay incense on it and carry it quickly to the congregation and make atonement for them, for wrath has gone out from the LORD; the plague has begun."

He made a path for his anger; he did not spare them from death, but gave their lives over to the plague.

The LORD is a jealous and avenging God; the LORD is avenging and wrathful; the LORD takes vengeance on his adversaries and keeps wrath for his enemies.

And

Then the earth reeled and rocked; the foundations also of the mountains trembled and quaked, because he was angry.

Burning coals

they shall be wasted with hunger, and devoured by plague and poisonous pestilence; I will send the teeth of beasts against them, with the venom of things that crawl in the dust.

General references

He covers the face of the full moon and spreads over it his cloud.

His breath kindles coals, and a flame comes forth from his mouth.

Fire goes before him and burns up his adversaries all around.