Exodus 12:28-30 New Revised Standard Version Catholic Edition (NRSVCE)
28 The Israelites went and did just as the Lord had commanded Moses and Aaron.
The Tenth Plague: Death of the Firstborn
29 At 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. 30 Pharaoh 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.