7 Then Pharaoh sent, and, behold, there was not one of the livestock of the sons of Israel dead. But the heart of Pharaoh hardened, and he did not let the people go.
8 And the Lord said unto Moses and unto Aaron, Let each of you take handfuls of soot from the furnace, and let Moses sprinkle it toward heaven in the sight of Pharaoh.
9 And it shall become dust upon all the land of Egypt, which shall cause boils breaking forth with blisters upon man and upon beast, throughout all the land of Egypt.
10 And they took the soot of the furnace and stood before Pharaoh; and Moses sprinkled it up toward heaven; and boils breaking forth with blisters came upon man and upon beast
11 until 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 did hearken unto them as the Lord had spoken unto Moses.
13 Then the Lord said unto Moses, Rise up early in the morning and stand before Pharaoh and say unto him, Thus saith the Lord God of the Hebrews, Let my people go that they may serve me.