Psalm 135:8
He who smote the firstborn of Egypt, both of man and beast;
Psalm 78:51
and smote all the firstborn in Egypt, the firstfruits of their strength in the tents of Ham:
Exodus 12:12
For I will pass through the land of Egypt this night and will smite all the firstborn in the land of Egypt, both among man and beast; and against all the gods of Egypt I will execute judgments: I am the LORD.
Psalm 105:36
He smote also all the firstborn in their land, the chief of all their strength.
Exodus 12:29-30
And it came to pass, that at midnight the LORD smote all the firstborn in the land of Egypt, from the firstborn of Pharaoh that sat on his throne unto the firstborn of the captive that was in the dungeon, and all the firstborn of the animals.
Exodus 13:15
and it came to pass when Pharaoh was hardening himself to not let us go that the LORD slew all the firstborn in the land of Egypt from the human firstborn to the firstborn of the beast; therefore, I sacrifice to the LORD every male that opens the womb, and I ransom every firstborn of my sons.
Psalm 136:10
To him that smote Egypt in their firstborn: for his mercy endures for ever: