A "Modern" Medieval Theory of Doctrinal Development: Development of Doctrine in St. Bonaventure's Collationes in Hexaemeron

Already in St. Bonaventure's Collationes in Hexaemeron there is a rudimentary theory of doctrinal development that confronts the historical problematic encountered most forcefully in modernity. This is the result of Bonaventure's urgent need to respond to the difficulties of Joachimism wherein Francis of Assisi is believed to have ushered in the new age of the Holy Spirit disassociated from the Bible, sacraments, and the institutional Church. In response Bonaventure elucidates an understanding of divine revelation in which new historical epochs allow the Church through the wise and holy mystic-contemplative to read more deeply of the word of God so as to gain a deeper insight into what has already been given in Jesus Christ. In this way the newness of Francis is preserved by grounding his radical way of life in continuity with the once-for-all revelation of God and the Church. In so doing Bonaventure anticipates the particularly modern historical problematic and paves a way forward that preserves the integrity of revelation centuries before the likes of John Henry Newman, Yves M-J Congar, and others.