1. "The trinity was a major preoccupation of Egyptian theologians .... Three gods are combined and treated as a single being, addressed in the singular. In this way the spiritual force of Egyptian religion shows a direct link with Christian theology." - Egyptian Religion.
2. "The Egyptians believed in a resurrection and future life, as well as in a state of rewards and punishments dependent on our conduct in this world. The judge of the dead was Osiris, who had been slain by Set, the representative of evil, and afterwards restored to life. His death was avenged by his son Horus, whom the Egyptians invoked as their "Redeemer." Osiris and Horus, along with Isis, formed a trinity, who were regarded as representing the sun-God under different forms." - Trinitarian scholar Dr. M.G. Easton; Easton's Bible Dictionary, Thomas Nelson Publ.
3. "This triad of Abydos [Horus, Isis, and Osiris] is apparently much older than even the earliest records .... These 3 main gods were skillfully incorporated into the Great Ennead or State religion of Egypt .... particularly during the first 5 [3110-2342 B.C.] or 6 dynasties when the worship of this triad was prominent." - The Ancient Myths, A Mentor Book, Goodrich, p. 25, 1960.