Exodus 11:9-10

Revised Geneva Translation

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

¹⁰ So Moses and Aaron did all these wonders before Pharaoh. But the LORD hardened Pharaoh’s heart; and he did not allow the children of Israel to go out of his land.