Exodus 11:5-6

Brenton(i) 5 And every first-born in the land of Egypt shall die, from the first-born of Pharao that sits on the throne, even to the first-born of the woman-servant that is by the mill, and to the first-born of all cattle. 6 And there shall be a great cry through all the land of Egypt, such as has not been, and such shall not be repeated any more.