10 And they took ashes from the oven, and they stood in the sight of Pharaoh, and Moses sprinkled it in the air. And there came sores with swelling pustules on men and on beasts.
11 Neither could the sorcerers stand in the sight of Moses, because of the sores that were on them and on all the land of Egypt.
12 And the Lord hardened the heart of Pharaoh, and he did not listen to them, just as the Lord said to Moses.
13 And the Lord said to Moses: "Rise up in the morning, and stand in the sight of Pharaoh, and you will say to him: 'Thus says the Lord God of the Hebrews: Release my people to sacrifice to me.
14 For at this turn, I will send all my plagues upon your heart, and upon your servants, and upon your people. So may you know that there is no one like me in all the earth.
15 For now, extending my hand, I shall strike you and your people with pestilence, and you will perish from the earth.
16 But it was for this reason that I appointed you, so that I may reveal my strength by you, and so that my name may be described throughout all the earth.