ABSTRACT
This conclusion presents some closing thoughts on key concepts discussed in the preceding chapters of this book. The book explains that the Cassiciacum dialogues, Augustine's first foray into Christian writing, clearly express the three defining propositions of pro-Nicene theology: the Father, Son, and Holy Spirit are eternally consubstantial. It presents discussion about sources and fundamental principles in the theology of the Cassiciacum dialogues broadened and at the same time focused on Augustine's pneumatology. The book shows direct engagement with Scripture as well as indirect engagement with Scripture through additional readings of Ambrose's writings, and the De Spiritu sancto in particular, were identified in Augustine's writings during his second "stopover" in Rome. It explores that the Roman writings suggest an awareness of the pro-Nicene principle of inseparable operations in Augustine's fully Trinitarian reading of Romans. The book describes that this development in Augustine's creation theology contained a development in his theology of the Spirit.
