The following is an excerpt taken from article DB109 from the Christian Research Journal. The full PDF can be viewed by clicking the link below the excerpt.
The Cult of Isis- Background
The cult of Isis originated in Egypt and went through two major stages. In its older Egyptian version, which was not a mystery religion, Isis was regarded as the goddess of heaven, earth, the sea, and the unseen world below. In this earlier stage, Isis had a husband named Osiris. The cult of Isis became a mystery religion only after Ptolemy the First introduced major changes, sometime after 300 B.C. In the later stage, a new god named Serapis became Isis’s consort. Ptolemy introduced these changes in order to synthesize Egyptian and Greek concerns in his kingdom, thus hastening the Hellenization of Egypt.
From Egypt, the cult of Isis gradually made its way to Rome. While Rome was at first repelled by the cult, the religion finally entered the city during the reign of Caligula (A.D. 37-41). Its influence spread gradually during the next two centuries, and in some locales it became a major rival of Christianity. The cult’s success in the Roman Empire seems to have resulted from its impressive ritual and the hope of immortality offered to its followers.
The Cult of Isis- The Basic Myth
The basic myth of the Isis cult concerned Osiris, her husband during the earlier Egyptian and nonmystery stage of the religion. According to the most common version of the myth, Osiris was murdered by his brother who then sank the coffin containing Osiris’s body into the Nile river. Isis discovered the body and returned it to Egypt. But her brother-in-law once again gained access to the body, this time dismembering it into fourteen pieces which he scattered widely. Following a long search, Isis recovered each part of the body. It is at this point that the language used to describe what followed is crucial. Sometimes those telling the story are satisfied to say that Osiris came back to life, even though such language claims far more than the myth allows. Some writers go even further and refer to the alleged “resurrection” of Osiris. One liberal scholar illustrates how biased some writers are when they describe the pagan myth in Christian language: “The dead body of Osiris floated in the Nile and he returned to life, this being accomplished by a baptism in the waters of the Nile.”3
The Cult of Isis- Influencing the New Testament?
This biased and sloppy use of language suggests three misleading analogies between Osiris and Christ: (1) a savior god dies and (2) then experiences a resurrection accompanied by (3) water baptism. But the alleged similarities, as well as the language used to describe them, turn out to be fabrications of the modern scholar and are not part of the original myth. Comparisons between the resurrection of Jesus and the resuscitation of Osiris are greatly exaggerated.4 Not every version of the myth has Osiris returning to life; in some he simply becomes king of the underworld. Equally far-fetched are attempts to find an analogue of Christian baptism in the Osins myth.5 The fate of Osiris’s coffin in the Nile is as relevant to baptism as the sinking of Atlantis.
As previously noted, during its later mystery stage, the male deity of the Isis cult is no longer the dying Osiris but Serapis. Serapis is often portrayed as a sun god, and it is clear that he was not a dying god. Obviously then, neither could he be a rising god. Thus, it is worth remembering that the post-Ptolemaic mystery version of the Isis cult that was in circulation from about 300 B.C. through the early centuries of the Christian era had absolutely nothing that could resemble a dying and rising savior-god.