Exodus 7:22-24

Darby Translation

²² And the scribes of Egypt did so with their sorceries; and Pharaoh's heart was stubborn, neither did he hearken to them, as Jehovah had said.

²³ And Pharaoh turned and went into his house, and took not this to heart either.

²⁴ And all the Egyptians dug round about the river for water to drink; for they could not drink of the water of the river.