Exodus 9:8-17

8And Jehovah said to Moses and to Aaron, Take to yourselves handfuls of ashes of the furnace, and let Moses scatter it toward the heavens before the eyes of Pharaoh.

9And it shall become fine dust over all the land of Egypt, and shall become boils on man and on cattle, breaking out [with] blisters, throughout the land of Egypt.

10And they took ashes of the furnace, and stood before Pharaoh; and Moses sprinkled it toward the heavens; and it became boils [with] blisters breaking out on man and on cattle.

11And the scribes could not stand before Moses because of the boils; for the boils were on the scribes, and on all the Egyptians.

12And Jehovah made Pharaoh's heart stubborn, and he did not hearken to them, as Jehovah had told Moses.

13And Jehovah said to Moses, Rise up early in the morning, and set thyself before Pharaoh, and say to him, Thus saith Jehovah, the 1God of the Hebrews: Let my people go, that they may serve me.

14For I will at this time send all my plagues to thy heart, and on thy bondmen, and on thy people; that thou mayest know that there is none like me in all the earth.

15For now shall I put forth my hand, and I will smite thee and thy people with pestilence; and thou shalt be cut off from the earth.

16And for this very cause have I raised thee up, to shew thee my power; and that my name may be declared in all the earth.

17Dost thou still exalt thyself against my people, that thou wilt not let them go?