Exodus 11:7-9

New International Version - UK

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 between Egypt and Israel. ⁸ All these officials of yours will come to me, bowing down before me and saying, “Go, you and all the people who follow you!” After that I will leave.’ Then Moses, hot with anger, left Pharaoh.

⁹ The Lord had said to Moses, ‘Pharaoh will refuse to listen to you – so that my wonders may be multiplied in Egypt.’