La ‘potestas’ en el libro 3 del ‘De libero arbitrio’

The article presents an in-depth exposition of the third book of De libero arbitrio, not only to understand its structure and main arguments, but also to explore how Augustine’s statements in this final book of De libero arbitrio would later become key to understanding the scope of his struggle with heretics, particularly the Pelagians, who cited passages from this third book against him. n particular, the article addresses the theme of potestas, which would become central in Augustine’s debate with the Pelagians.