Nine , the product of three and three , represent a multitude , so the Egyptians called several large groups " enneads " , or sets of nine , even if they had more than nine members . The most prominent ennead was the Ennead of Heliopolis , an extended family of deities descended from the creator god Atum , which incorporate many important gods . The term " ennead " was often extended to include all of Egypt 's deities .