Exodus 11
4 Ref And Moses saith, `Thus said Jehovah, About midnight I am going out into the midst of Egypt,
5 Ref and every first-born in the land of Egypt hath died, from the first-born of Pharaoh who is sitting on his throne, unto the first-born of the maid-servant who `is' behind the millstones, and all the first-born of beasts;