Exodus 9:10-12

Expanded Bible

¹⁰ So Moses and Aaron took ·ashes [soot] from a ·furnace [kiln] and went and stood before ·the king [^LPharaoh]. Moses threw ·ashes [the soot; ^Lit] into the air, which caused boils to break out and become sores on people and animals. ¹¹ The ·magicians [sorcerers] could not stand before Moses, because all the Egyptians had boils, even the ·magicians [sorcerers]. ¹² But the Lord ·made the king stubborn [^Lhardened the heart of Pharaoh], so he refused to listen to them, just as the Lord had said.