Exodus 12:29-31

New Century Version

²⁹ At midnight the Lord killed all the firstborn sons in the land of Egypt—from the firstborn of the king who sat on the throne to the firstborn of the prisoner in jail. Also, all the firstborn farm animals died. ³⁰ The king, his officers, and all the Egyptians got up during the night because someone had died in every house. So there was a loud outcry everywhere in Egypt.

Israel Leaves Egypt

³¹ During the night the king called for Moses and Aaron and said, “Get up and leave my people. You and your people may do as you have asked; go and worship the Lord.