Psalm 105:36
He struck also all the firstborn in their land, the first of all their strength.
Genesis 49:3
Reuben, you are my firstborn, my might, and the beginning of my strength, the excellency of dignity, and the excellency of power:
Psalm 78:51
And struck down all the firstborn in Egypt; the chief of their strength in the tabernacles of Ham:
Psalm 135:8
Who struck the firstborn of Egypt, both of man and beast.
Psalm 136:10
To him that struck Egypt in their firstborn: for his mercy endures forever:
Exodus 4:23
And I say unto you, Let my son go, that he may serve me: and if you refuse to let him go, behold, I will slay your son, even your firstborn.
Exodus 11:4-5
And Moses said, Thus says the LORD, About midnight will I go out into the midst of Egypt:
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 man and beast; and against all the gods of Egypt I will execute judgment: I am the LORD.
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 to the firstborn of the captive that was in the dungeon; and all the firstborn of cattle.
Hebrews 11:28
Through faith he kept the passover, and the sprinkling of blood, lest he that destroyed the firstborn should touch them.