The great river, over 6,400 km. (4,000 miles) long, which flows from south to north through Egypt and has been fundamental for the maintenance of life. Its tremendous floods made an enormous impression on the Hebrews, who knew nothing like it in Palestine. Pharaoh ordered Hebrew male infants to be cast into the Nile, but Moses was saved (Exod. 1: 22; 2). One of the plagues turned the Nile into blood (Exod. 4: 9) and in the Priestly source not only the Nile but all the waters of Egypt (Exod. 7: 19). That the Nile turns reddish and foul is an observed natural phenomenon; within the context of the deep racial memory of the Exodus and its cult and in thankfulness to God, the natural event has become a miracle.