Exodus 11:7-9

7But among all the Israelites, not even a dog will snarl at man or beast.’1

Then you will know that the LORD makes a distinction between Egypt and Israel. 8And all these officials of yours will come and bow before me, saying, ‘Go, you and all the people who follow you!’ After that, I will depart.”

And hot with anger, Moses left Pharaoh’s presence.

9The LORD said to Moses, “Pharaoh will not listen to you, so that My wonders may be multiplied in the land of Egypt.”