7 And Pharaoh sent, and, hinei, there was not one of the mikneh Yisroel dead. And the lev Pharaoh was hardened, and he did not let HaAm go.
8 And Hashem said unto Moshe and unto Aharon, Take to you handfuls of piach of the furnace, and let Moshe sprinkle it toward Shomayim in the sight of Pharaoh.
9 And it shall become fine dust in kol Eretz Mitzrayim, and shall be a sh'khin (boil) breaking forth with festers upon adam, and upon behemah, throughout kol Eretz Mitzrayim.
10 And they took piach of the furnace, and stood before Pharaoh; and Moshe sprinkled it up toward Shomayim; and it became a sh'khin breaking forth with festers upon adam, and upon behemah.
11 And the kharetumim could not stand before Moshe because of the sh'khin; for the sh'khin was upon the kharetumim, and upon kol Mitzrayim.
12 And Hashem hardened the lev Pharaoh, and he paid heed not unto them; as Hashem had spoken unto Moshe.
13 And Hashem said unto Moshe, Rise up early in the boker, and stand before Pharaoh, and say unto him, Thus saith Hashem Elohei HaIvrim, Let My people go, that they may serve Me.