Ancient Egypt. Illustration Egyptian civilization. Elderly woman prays to the Egyptian crocodile god. Sobek was an ancient Egyptian deity with a complex and fluid nature, associated with the Nile crocodile and is either represented in its form or as a human with a crocodile head. Sobek was also associated with pharaonic power, fertility, and military prowess, but served additionally as a protective deity with apotropaic qualities, invoked particularly for protection against the dangers presented by the Nile river.