Exodus 9:11-13

Amplified Bible, Classic Edition

¹¹ And the magicians could not stand before Moses because of their boils; for the boils were on the magicians and all the Egyptians.

¹² But the Lord hardened the heart of Pharaoh, making it strong and obstinate, and he did not listen to them or heed them, just as the Lord had told Moses.

¹³ Then the Lord said to Moses, Rise up early in the morning and stand before Pharaoh and say to him, Thus says the Lord, the God of the Hebrews, Let My people go, that they may serve Me.