Psalm 135:8
Who struck the firstborn of Egypt, both of man and animal;
Psalm 78:51
and struck all the firstborn in Egypt, the chief of their strength in the tents of Ham.
Exodus 12:12
For I will go through the land of Egypt in that night, and will strike all the firstborn in the land of Egypt, both man and animal. Against all the gods of Egypt I will execute judgments: I am Yahweh.
Psalm 105:36
He struck also all the firstborn in their land, the first fruits of all their manhood.
Exodus 12:29-30
It happened at midnight, that Yahweh struck all the firstborn in the land of Egypt, from the firstborn of Pharaoh who sat on his throne to the firstborn of the captive who was in the dungeon; and all the firstborn of livestock.
Exodus 13:15
and it happened, when Pharaoh would hardly let us go, that Yahweh killed all the firstborn in the land of Egypt, both the firstborn of man, and the firstborn of animal. Therefore I sacrifice to Yahweh all that opens the womb, being males; but all the firstborn of my sons I redeem.'
Psalm 136:10
To him who struck down the Egyptian firstborn; for his loving kindness endures forever;