And the LORD said to Moses and Aaron, "Take handfuls of ashes from the kiln, and let Moses throw them toward heaven in the sight of Pharaoh.
And it shall become fine dust over all the land of Egypt, and become boils breaking out in sores on man and beast throughout all the land of Egypt."
So they took ashes from the kiln, and stood before Pharaoh, and Moses threw them toward heaven, and it became boils breaking out in sores on man and beast.
And the magicians could not stand before Moses because of the boils, for the boils were upon the magicians and upon all the Egyptians.
But the LORD hardened the heart of Pharaoh, and he did not listen to them; as the LORD had spoken to Moses.
Revised Standard Version of the Bible, copyright 1952 [2nd edition, 1971] by the Division of Christian Education of the National Council of the Churches of Christ in the United States of America. Used by permission. All rights reserved. (Revised Standard Version - Holy Bible)