Treasury of Scripture Knowledge
And smote all the first-born in Egypt, The chief of their strength in the tents of Ham.
He smote also all the first-born in their land, The chief of all their strength.
To him that smote Egypt in their first-born; For his lovingkindness endureth for ever;
For I will go through the land of Egypt in that night, and will smite all the first-born in the land of Egypt, both man and beast; and against all the gods of Egypt I will execute judgments: I am Jehovah.
and it came to pass, when Pharaoh would hardly let us go, that Jehovah slew all the first-born in the land of Egypt, both the first-born of man, and the first-born of beast: therefore I sacrifice to Jehovah all that openeth the womb, being males; but all the first-born of my sons I redeem.