Then the Lord said to Moses and Aaron, "Take handfuls of soot from the kiln, and let Moses throw it in the air in the sight of Pharaoh.
It shall become fine dust all over the land of Egypt, and shall cause festering boils on humans and animals throughout the whole land of Egypt."
So they took soot from the kiln, and stood before Pharaoh, and Moses threw it in the air, and it caused festering boils on humans and animals.
The magicians could not stand before Moses because of the boils, for the boils afflicted the magicians as well as all the Egyptians.
But the Lord hardened the heart of Pharaoh, and he would not listen to them, just as the Lord had spoken to Moses.