On First Principles is the most important surviving text written by third-century Church father, Origen . Origen wrote in a time when fundamental doctrines had not yet been fully articulated by the Church, and contributed to the very formation of Christianity.

On First Principles is the most important surviving text written by third-century Church father, Origen . Origen wrote in a time when fundamental doctrines had not yet been fully articulated by the Church, and contributed to the very formation of Christianity.