7 When Pharaoh inquired, there was not so much as one of the cattle of Bnei-Yisrael dead. But the heart of Pharaoh was stubborn, and he did not let the people go.
8 Then Adonai said to Moses and Aaron, “Take handfuls of soot from the furnace, and have Moses throw it heavenward in the sight of Pharaoh.
9 It will become fine dust over all the land of Egypt, and will become boils erupting with sores on both men and animals throughout all the land.”
10 So they took soot from the furnace and stood before Pharaoh. When Moses threw it heavenward, it became boils erupting with sores on both men and animals.
11 Moreover, the magicians could not stand before Moses because of the boils, because they were on the magicians, as on all the Egyptians.
12 But Adonai hardened the heart of Pharaoh, so he did not listen to them—just as Adonai had said to Moses.
13 Then Adonai said to Moses, “Rise up early in the morning, stand before Pharaoh and say to him: This is what Adonai the God of the Hebrews says: ‘Let My people go, so they may serve Me.