Exodus 9:13 WEB

¹¹  The magicians couldn't stand before Moses because of the boils; for the boils were on the magicians, and on all the Egyptians.

¹²  Yahweh hardened the heart of Pharaoh, and he didn't listen to them, as Yahweh had spoken to Moses.

¹³  Yahweh said to Moses, 'Rise up early in the morning, and stand before Pharaoh, and tell him, 'This is what Yahweh, the God of the Hebrews, says: 'Let my people go, that they may serve me.

¹⁴  For this time I will send all my plagues against your heart, against your officials, and against your people; that you may know that there is none like me in all the earth.

¹⁵  For now I would have put forth my hand, and struck you and your people with pestilence, and you would have been cut off from the earth;