Exodus 11:4-10

New International Version

⁴ So Moses said, “This is what the Lord says: ‘About midnight^(A) I will go throughout Egypt.^{(B) 5} Every firstborn^(C) son in Egypt will die, from the firstborn son of Pharaoh, who sits on the throne, to the firstborn son of the female slave, who is at her hand mill,^(D) and all the firstborn of the cattle as well. ⁶ There will be loud wailing^(E) throughout Egypt—worse than there has ever been or ever will be again. ⁷ But among the Israelites not a dog will bark at any person or animal.’ Then you will know that the Lord makes a distinction^(F) between Egypt and Israel. ⁸ All these officials of yours will come to me, bowing down before me and saying, ‘Go,^(G) you and all the people who follow you!’ After that I will leave.”^(H) Then Moses, hot with anger, left Pharaoh.

⁹ The Lord had said to Moses, “Pharaoh will refuse to listen^(I) to you—so that my wonders^(J) may be multiplied in Egypt.” ¹⁰ Moses and Aaron performed all these wonders before Pharaoh, but the Lord hardened Pharaoh’s heart,^(K) and he would not let the Israelites go out of his country.