2. set—stir up. Gesenius translates, "arm."
Egyptians against the Egyptians—Lower against Upper: and Saitic against both. (See Isa 3:10). Newton refers it to the civil wars between Apries and Amasis at the time of Nebuchadnezzar's invasion; also between Tachos, Nectanebus, and the Mendesians, just before Ochus subdued Egypt.
kingdom against kingdom—The Septuagint has "nome against nome"; Egypt was divided into forty-two nomes or districts.