Ipuwer, the Egyptian eyewitness of the catastrophe, wrote his lament on papyrus: “The river is blood,” and this corresponds with the Book of Exodus ( 7:20 ): “All the waters that were in the river were turned to blood.”
Blood is everywhere,” and this, too, corresponds with the Book of Exodus (7: 21 ): “There was blood throughout all the land of Egypt.”
“And the river stank” (Exodus 7 : 21).
“And all the Egyptians dug round about the river for water to drink; for they could not drink of the water of the river” (Exodus 7 : 24).