The Sixth Plague: Boils
Exodus 9: 8-12
And the LORD said to Moses and to Aaron, Take to you handfuls of ashes of the furnace, and let Moses sprinkle it toward the heaven in the sight of Pharaoh. And it shall become small dust in all the land of Egypt, and shall be a boil breaking forth with blains on man, and on beast, throughout all the land of Egypt. And they took ashes of the furnace, and stood before Pharaoh; and Moses sprinkled it up toward heaven; and it became a boil breaking forth with blains on man, and on beast. And the magicians could not stand before Moses because of the boils; for the boil was on the magicians, and on all the Egyptians. And the LORD hardened the heart of Pharaoh, and he listened not to them; as the LORD had spoken to Moses.