The New John Gill Exposition of the Entire BiblePsalms 105:36
He smote also all the firstborn in their land…
men and beasts; the firstborn of the king on the throne, and of the
maidservant behind the mill, and of the captive in the dungeon; this
was the last plague, and which prevailed upon the Egyptians to let
Israel go, (Exodus 11:5) (12:29-33) .
The chief of all their strength;
or the first of their strength; the
same in different words as before, their firstborn; see (Genesis 49:3) .