10. And they took ashes of the furnace, and stood before Pharaoh; and Moses sprinkled it up toward heaven; and it became boils breaking forth with sores 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 the LORD hardened the heart of Pharaoh, and he hearkened not unto them; as the LORD had spoken unto Moses.