Exodus 11:4-7

11:4 Moses said, “Thus says the Lord: ‘About midnight I will go throughout Egypt, 11:5 and all the firstborn in the land of Egypt will die, from the firstborn son of Pharaoh who sits on his throne, to the firstborn son of the slave girl who is at her hand mill, and all the firstborn of the cattle. 11:6 There will be a great cry throughout the whole land of Egypt, such as there has never been, nor ever will be again. 11:7 But against any of the Israelites not even a dog will bark against either people or animals, so that you may know that the Lord distinguishes between Egypt and Israel.’

Exodus 12:12-13

12:12 I will pass through the land of Egypt in the same night, and I will attack all the firstborn in the land of Egypt, both of humans and of animals, and on all the gods of Egypt I will execute judgment. I am the Lord. 12:13 The blood will be a sign for you on the houses where you are, so that when I see the blood I will pass over you, and this plague will not fall on you to destroy you when I attack the land of Egypt.

Exodus 12:29-30

The Deliverance from Egypt

12:29 It happened at midnight – the Lord attacked 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 prison, and all the firstborn of the cattle. 12:30 Pharaoh got up in the night, along with all his servants and all Egypt, and there was a great cry in Egypt, for there was no house in which there was not someone dead.

Exodus 14:17-18

14:17 And as for me, I am going to harden the hearts of the Egyptians so that they will come after them, that I may be honored because of Pharaoh and his army and his chariots and his horsemen. 14:18 And the Egyptians will know that I am the Lord when I have gained my honor because of Pharaoh, his chariots, and his horsemen.”

Psalms 78:50-51

78:50 He sent his anger in full force;

he did not spare them from death;

he handed their lives over to destruction.

78:51 He struck down all the firstborn in Egypt,

the firstfruits of their reproductive power in the tents of Ham.

Psalms 83:9-11

83:9 Do to them as you did to Midian –

as you did to Sisera and Jabin at the Kishon River!

83:10 They were destroyed at Endor;

their corpses were like manure on the ground.

83:11 Make their nobles like Oreb and Zeeb,

and all their rulers like Zebah and Zalmunna,