8. The Lord said to Moses and Aaron, “Fill your hands with the ashes from a furnace. Moses, you throw the ashes into the air in front of Pharaoh.
9. This will become dust that will go throughout the land of Egypt. Whenever the dust touches a person or an animal in Egypt, sores will break out on the skin.”
10. So Moses and Aaron took ashes from a furnace and went and stood before Pharaoh. Moses threw the ashes into the air, and sores began breaking out on people and animals.
11. The magicians could not stop Moses from doing this, because even the magicians had the sores. This happened everywhere in Egypt.
12. But the Lord made Pharaoh stubborn, so he refused to listen to Moses and Aaron, just as the Lord had said.