Moses
Exodus 12:29BSB·traditional attribution

Now at midnight the LORD struck down every firstborn male in the land of Egypt, from the firstborn of Pharaoh, who sat on his throne, to the firstborn of the prisoner in the dungeon, as well as all the firstborn among the livestock.

John Calvin Reformed @genevareformer

29. And it came to pass, that at midnight. Lest the hand of God should be hidden in this miracle, as well in the preservation of the people as in taking vengeance upon the Egyptians, Moses sets forth its power by many circumstances.

Matthew Henry Presbyterian @wholebiblehenry

Here we have, I. The Egyptians' sons, even their first-born, slain, Exo 12:29, Exo 12:30. If Pharaoh would have taken the warning which was given him of this plague, and would thereupon have released Israel, what a great many dear and valuable lives might have been preserved! But see what obstinate infidelity brings upon men. Observe, 1.

Commenting on Exodus 12:29-36

John Gill Reformed Baptist @doctorgill

And he called for Moses and Aaron by night,.... Not that Pharaoh went in person, but he sent his servants to call them; for they never saw his face more after he had drove them from his presence; but now was fulfilled what Moses told him, that his servants should come to him in a very suppliant manner, and entreat him and his people to...