Exodus 7:21-23

Amplified Bible, Classic Edition

²¹ And the fish in the river died; and the river became foul smelling, and the Egyptians could not drink its water, and there was blood throughout all the land of Egypt.

²² But the magicians of Egypt did the same by their enchantments and secret arts; and Pharaoh’s heart was made hard and obstinate, and he did not listen to Moses and Aaron, just as the Lord had said.

²³ And Pharaoh turned and went into his house; neither did he take even this to heart.