Exod 12:29-32

The Tenth Plague: Death of the Firstborn 29At midnight the Lord struck down all the firstborn in the land of Egypt, from the firstborn of Pharaoh who sat on his throne to the firstborn of the prisoner who was in the dungeon, and all the firstborn of the livestock.30Pharaoh arose in the night, he and all his officials and all the Egyptians; and there was a loud cry in Egypt, for there was not a house without someone dead.31Then he summoned Moses and Aaron in the night, and said, “Rise up, go away from my people, both you and the Israelites! Go, worship the Lord, as you said.32Take your flocks and your herds, as you said, and be gone. And bring a blessing on me too!”