Catholic EncyclopediaThe statements of the writers of the second century concerning him are largely legendary, and it is difficult or rather impossible to extract from them any historical fact the details of which are established with certainty. St. Justin of Rome ("First Apolog.", xxvi, lvi; "Dialogus c. Tryphonem", cxx) describes Simon as a man who, at the instigation of demons, claimed to be a god. Justin says further that Simon came to Rome during the reign of the Emperor Claudius and by his magic arts won many followers so that these erected on the island in the Tiber a statue to him as a divinity with the inscription "Simon the Holy God". The statue, however, that Justin took for one dedicated to Simon was undoubtedly one of the old Sabine divinity Semo Sancus. Statues of this early god with similar inscriptions have been found on the island in the Tiber and elsewhere in Rome. It is plain that the interchange of e and i in the Roman characters led Justin or the Roman Christians before him, to look upon the statue of the early Sabine deity, of whom they knew nothing, as a statue of the magician. Whether Justin's opinion that Simon Magus came to Rome rests only on the fact that he believed Roman followers had erected this statue to him, or whether he had other information on this point, cannot now be positively determined. His testimony cannot, therefore, be verified and so remains doubtful. The later anti-heretical writers who report Simon's residence at Rome, take Justin and the apocryphal Acts of Peter as their authority, so that their testimony is of no value.
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