Exodus 12:29-33

29It 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.

30Pharaoh 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.

31Pharaoh summoned Moses and Aaron in the night and said, “Get up, get out from among my people, both you and the Israelites! Go, serve the Lord as you have requested!

32Also, take your flocks and your herds, just as you have requested, and leave. But bless me also.”

33The Egyptians were urging the people on, in order to send them out of the land quickly, for they were saying, “We are all dead!”