Exodus 9:8-12

American Standard Version

⁸ And Jehovah said unto Moses and unto Aaron, Take to you handfuls of ^[a]ashes of the furnace, and let Moses sprinkle it toward heaven in the sight of Pharaoh. ⁹ And it shall become small dust over all the land of Egypt, and shall be a boil breaking forth with blains upon man and upon beast, throughout all the land of Egypt. ¹⁰ 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 upon man and upon beast. ¹¹ And the magicians could not stand before Moses because of the boils; for the boils were upon the magicians, and upon all the Egyptians. ¹² And Jehovah ^[b]hardened the heart of Pharaoh, and he hearkened not unto them; as Jehovah had spoken unto Moses.