Exodus 11:3-5

Young's Literal Translation

³ And Jehovah giveth the grace of the people in the eyes of the Egyptians; also the man Moses [is] very great in the land of Egypt, in the eyes of the servants of Pharaoh, and in the eyes of the people.

⁴ And Moses saith, `Thus said Jehovah, About midnight I am going out into the midst of Egypt,

⁵ 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;