Psalm 135:8

And smote all the firstborn in Egypt; the chief of their strength in the tabernacles of Ham:

For I will pass through the land of Egypt this night, and will smite all the firstborn in the land of Egypt, both man and beast; and against all the gods of Egypt I will execute judgment: I am the LORD.

He smote also all the firstborn in their land, the chief of all their strength.

To him that smote Egypt in their firstborn: for his mercy endureth for ever:

And it came to pass, when Pharaoh would hardly let us go, that the LORD slew all the firstborn in the land of Egypt, both the firstborn of man, and the firstborn of beast: therefore I sacrifice to the LORD all that openeth the matrix, being males; but all the firstborn of my children I redeem.