This chapter first investigates the meaning of ‘revelation’ in ancient Christianity and ancient non-Jewish and non-Christian religions, especially in ‘pagan’ Platonism of the early imperial period. ‘Revelation’ was characterised by the stress on authoritative sources of revealed knowledge (e.g., the Bible, the Chaldaean Oracles). The objective is to argue that ‘pagan’ Platonists faithful to Plato (and commenting just on Plato) cannot be simplistically opposed to Jewish or Christian Platonists faithful to the Bible (and commenting exclusively on the Bible). The chapter examines how philosophical allegoresis was applied by Stoics and Platonists – ‘pagan’, Jewish, and Christian Platonists – to their authoritative texts and revelations. This study provides an accurate examination of the conceptual and methodological intersections between the works of ‘pagan’ and Christian Platonists, and points to cases that break the binary between ‘pagan’ commentaries on ‘pagan’ authoritative texts and Christian commentaries on Scripture. It will also suggest that Amelius commented on the Prologue of John in light of his previous knowledge of Origen’s Commentary.