8 Who struck the firstborn of Egypt, both of man and beast.
Psalms 135:8 Cross References - CAB
Exodus 12:12
12 And I will go throughout the land of Egypt in that night, and I will smite every firstborn in the land of Egypt, both man and beast, and on all the gods of Egypt will I execute vengeance: I am the Lord.
Exodus 12:29-30
29 And it came to pass at midnight that the Lord struck all the firstborn in the land of Egypt, from the firstborn of Pharaoh that sat on the throne, to the firstborn of the captive in the dungeon, and the firstborn of all cattle.
30 And Pharaoh rose up by night, and his servants, and all the Egyptians. And there was a great cry in all the land of Egypt, for there was not a house in which there was not one dead.
Exodus 13:15
15 And when Pharaoh hardened his heart so as not to send us away, He slew every firstborn in the land of Egypt, both the firstborn of man and the firstborn of beast; therefore I sacrifice every offspring that opens the womb, the males to the Lord, and every firstborn of my sons I will redeem.
Psalms 78:51
51 and He struck down every firstborn in the land of Egypt; the firstfruits of their labors in the tents of Ham.
Psalms 105:36
36 He smote also every firstborn of their land, the firstfruits of all their labor.
Psalms 136:10
10 To Him who struck Egypt with their firstborn; for His mercy endures forever.