Now it happened at midnight that the Lord struck every firstborn 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 all the firstborn of the cattle.

I will strike them with the pestilence (plague) and dispossess them, and will make you into a nation greater and mightier than they.”

Moses said to Aaron, “Take a censer and put fire in it from the altar and lay incense on it; then bring it quickly to the congregation and make atonement for them, for wrath has gone forth from the Lord; the plague has begun!”

He leveled a path for His anger [to give it free run];
He did not spare their souls from death,
But turned over their lives to the plague.

The Lord is a jealous and avenging God [protecting and demanding what is rightfully and uniquely His];
The Lord avenges and He is full of wrath.
The Lord takes vengeance on His adversaries,
And He reserves wrath for His enemies.

And

Then the earth shook and quaked,
The foundations of the mountains trembled;
They were shaken because He was indignant and angry.

Burning coals

‘They will be wasted by hunger, and consumed by plague
And a bitter destruction;
And I will send the teeth of beasts against them,
With the venom of crawling things of the dust.

General references

“He covers the face of the full moon
And spreads His cloud over it.

“His breath kindles coals,
And a flame goes forth from his mouth.

Fire goes before Him
And burns up His adversaries on all sides.