of the Song, covering only the first three chapters to Song 3:7. The commentary on the Song of Songs survives in two Georgian manuscripts, a Greek epitome, a Paleo-Slavonic florilegium, and fragments in Armenian and Syriac as well as in many patristic quotations, especially in Ambrose of Milan's Exposition on Psalm 118 (119). It is generally regarded as an instruction relating to a post-Baptismal rite of anointing with oil as a symbol of receiving the Holy Spirit. The commentary was originally written as part of a mystagogy, an instruction for new Christians. Scholars have usually assumed the Commentary On the Song of Songs was originally composed for use during Easter, a season favored in the West for Baptism. Hippolytus supplied his commentary with a fully developed introduction known as the schema isagogicum, indicating his knowledge of the rhetorical conventions for teachers discussing classical works. He employs a common rhetorical trope, ekphrasis, using images on the walls or floors of Greco-Roman homes, and in the catacombs as paintings or mosaics. Origen felt that the Song should be reserved for the spiritually mature and that studying it might be harmful for the novice. Scholars generally ascribe to Hippolytus a work now entitled the Apostolic Tradition, which contains the earliest known ritual of ordination. The influence of Hippolytus was felt chiefly through his works on chronography and ecclesiastical law. His chronicle of the world, a compilation embracing the whole period from the creation of the world up to the year 234, formed a basis for many chronographical works both in the East and West. It is from the Apostolic Tradition that the current words of episcopal ordination in the Catholic Church come from, as updated by Pope Paul VI. In the great compilations of ecclesiastical law that arose in the East since the 3rd century, the Church Orders many canons were attributed to Hippolytus, for example in the Canons of Hippolytus or the Constitutions through Hippolytus. How much of this material is genuinely his, how much of it worked over, and how much of it wrongly attributed to him, can no longer be determined beyond dispute, however a great deal was incorporated into the Fetha Negest, which once served as the constitutional basis of law in Ethiopia — where he is still remembered as Abulides. During the early 20th century the work known as The Egyptian Church Order was identified as the Apostolic