Exodus 7:22-24

Amplified Bible, Classic Edition

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.

²⁴ And all the Egyptians dug round about the river for water to drink, for they could not drink the water of the [Nile].