 Under the Greek Ptolemaic Dynasty and then Roman rule , Greeks and Romans introduced their own deities to Egypt . These newcomers equated the Egyptian gods with their own , as part of the Greco @-@ Roman tradition of <unk> <unk> . But the worship of the native gods was not swallowed up by that of foreign ones . Instead , Greek and Roman gods were adopted as manifestations of Egyptian ones . Egyptian cults sometimes incorporated Greek language , philosophy , iconography , and even temple architecture . Meanwhile , the cults of several Egyptian deities — particularly Isis , Osiris , Anubis , the form of Horus named <unk> , and the fused Greco @-@ Egyptian god <unk> — were adopted into Roman religion and spread across the Roman Empire . Roman emperors , like Ptolemaic kings before them , invoked Isis and <unk> to endorse their authority , inside and outside Egypt . In the empire 's complex mix of religious traditions , Thoth was transmuted into the legendary esoteric teacher Hermes Trismegistus , and Isis , who was venerated from Britain to Mesopotamia , became the focus of a Greek @-@ style mystery cult . Isis and Hermes Trismegistus were both prominent in the Western esoteric tradition that grew from the Roman religious world . 
