Exodus 9:8-17

8Then the Lord said to Moses and Aaron, “Take handfuls of furnace soot, and Moses is to throw it toward heaven in the sight of Pharaoh.

9It will become fine dust over the entire land of Egypt. It will become festering boils on people and animals throughout the land of Egypt.”

10So they took furnace soot and stood before Pharaoh. Moses threw it toward heaven, and it became festering boils on people and animals.

11The magicians could not stand before Moses because of the boils, for the boils were on the magicians as well as on all the Egyptians.

12But the Lord hardened Pharaoh’s heart and he did not listen to them, as the Lord had told Moses.

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

14For this time I am about to send all my plagues against you, your officials, and your people. Then you will know there is no one like me on the whole earth.

15By now I could have stretched out my hand and struck you and your people with a plague, and you would have been obliterated from the earth.

16However, I have let you live for this purpose: to show you my power and to make my name known on the whole earth.

17You are still acting arrogantly against my people by not letting them go.