Exodus 9:8-17

8Then the Lord said to Moses and Aaron, “Take handfuls of soot from a brick kiln, and have Moses toss it into the air while Pharaoh watches.

9The ashes will spread like fine dust over the whole land of Egypt, causing festering boils to break out on people and animals throughout the land.”

10So they took soot from a brick kiln and went and stood before Pharaoh. As Pharaoh watched, Moses threw the soot into the air, and boils broke out on people and animals alike.

11Even the magicians were unable to stand before Moses, because the boils had broken out on them and all the Egyptians.

12But the Lord hardened Pharaoh’s heart, and just as the Lord had predicted to Moses, Pharaoh refused to listen.

13Then the Lord said to Moses, “Get up early in the morning and stand before Pharaoh. Tell him, ‘This is what the Lord, the God of the Hebrews, says: Let my people go, so they can worship me.

14If you don’t, I will send more plagues on you and your officials and your people. Then you will know that there is no one like me in all the earth.

15By now I could have lifted my hand and struck you and your people with a plague to wipe you off the face of the earth.

16But I have spared you for a purpose—to show you my power and to spread my fame throughout the earth.

17But you still lord it over my people and refuse to let them go.