Job 28:10

10. Rivers In the sense of canals or water-courses. The fact that the word יאר , here used, is of Egyptian origin, (the word aur of the hieroglyphics, signifying river,) is an indication that Job may be describing the Egyptian mines and mode of mining, perhaps those in the Sinaitic districts, either in the wady Magharah or that of Sarabit. “To wash the ruins,” says Pliny, “they bring rivers from the tops of mountains a hundred miles off. They carry aqueducts over the valleys, and sometimes hew a way for those pipes THROUGH THE ROCKS.”