And it came to pass, that at midnight the LORD smote all the first-born in the land of Egypt, from the first-born of Pharaoh that sat on his throne, to the first-born of the captive that was in the dungeon; and all the first-born of cattle.

I will smite them with the pestilence, and disinherit them, and will make of thee a greater nation and mightier than they.

And Moses said to Aaron, Take a censer, and put fire in it from off the altar, and put on incense, and go quickly to the congregation, and make an atonement for them: for there is wrath gone out from the LORD; the plague is begun.

He made a way to his anger; he spared not their soul from death, but gave their life over to the pestilence;

God is jealous, and the LORD avengeth; the LORD avengeth, and is furious; the LORD will take vengeance on his adversaries, and he reserveth wrath for his enemies.

And

Then the earth shook and trembled; the foundations also of the hills moved and were shaken, because he was wroth.

Burning coals

They shall be burnt with hunger, and devoured with burning heat, and with bitter destruction: I will also send the teeth of beasts upon them, with the poison of serpents of the dust.

General references

He holdeth back the face of his throne, and spreadeth his cloud upon it.

His breath kindleth coals, and a flame issueth from his mouth.

A fire goeth before him, and burneth up his enemies round about.