§ 27.5. According to Hippolytus the Valentinian school split up into two parties--an Italian party, the leaders of which, Heracleon and Ptolemæus [Ptolemy], were at Rome, and an Eastern party to which Axionicus and Bardesanes belonged. =Heracleon= of Alexandria was a man of a profoundly religious temperament, who in his speculation inclined considerably toward the doctrine of the church, and even wrote the first commentary on the Gospel of John, of which many fragments are preserved in Origen’s commentary on that gospel. =Ptolemæus= [Ptolemy] drew even closer than his master to the church doctrine. Epiphanius quotes a letter of his to his pupil Flora in which, after Marcion’s example (see § 27, 11), the distinction of the divine and the demiurgical in the Old Testament, and the relation of the Old Testament to the New, are discussed. A position midway between that of the West and of the East is apparently represented by Marcus and his school. He combined with the doctrine of Valentinus the Pythagorean and cabbalistic mysticism of numbers and letters, and joined thereto magical and soothsaying arts. His followers, the Marcosians, had a form of worship full of ceremonial observances, with a twofold baptism, a psychical one in the Kato-Christus for the forgiveness of sins, and a pneumatical one for affiance with the future heavenly syzygy. Of the Antiochean Axionicus we know nothing but the name. Of far greater importance was =Bardesanes=, who flourished according to Eusebius in the time of Marcus Aurelius, but is assigned by authentic Syrian documents to the beginning of the third century. The chief sources of information about his doctrine are the 56 rhyming discourses of Ephraem [Ephraim] against the heretics. Living at the court and enjoying the favour of the king of Edessa, he never attacked in his sermons the doctrinal system of the church, but spread his Gnostic views built upon a Valentinian basis in lofty hymns of which, besides numerous fragments in Ephraem [Ephraim], some are preserved in the apocryphal _Acta Thomae_ (§ 32, 6). Among his voluminous writings there was a controversial treatise against the Marcionites (see § 27, 11). In a Dialogue, Περὶ εἱμαρμένης, attributed to him, but probably belonging to one of his disciples named Philippus, from which Eusebius (_Præp. Ev._ vi. 10) quotes a passage, the Syrian original of which, “The Book of the Laws of the Land,” was only recently discovered,[41] astrology and fatalism are combated from a Christian standpoint, although the author is still himself dominated by many Zoroastrian ideas. Harmonius, the highly gifted son of Bardesanes, distinguished himself by the composition of hymns in a similar spirit.