Responses in Defense of Augustine

This treatise emerged from the heated theological controversies that followed Augustine's death in 430, when opponents of his teaching on grace and predestination launched renewed attacks on his legacy. Prosper of Aquitaine, Augustine's devoted disciple and defender, wrote these "Responses in Defense of Augustine" in 431 to counter specific objections raised against Augustinian doctrine, particularly those circulating in Gaul where semi-Pelagian ideas had gained ground among monks and clergy who feared Augustine's emphasis on divine sovereignty undermined human moral effort.

Prosper systematically addresses eighteen distinct objections to Augustine's teaching, ranging from accusations that predestination makes preaching pointless to claims that Augustine's doctrine destroys free will and moral responsibility. Rather than merely repeating Augustine's arguments, Prosper refines and clarifies them, often drawing on Augustine's later works that his opponents had not adequately considered. He demonstrates that Augustine's teaching on grace actually establishes rather than destroys the necessity of human cooperation with divine grace, and that predestination serves as the foundation rather than the enemy of genuine spiritual striving. The work reveals Prosper's skill as both a careful theologian and a pastoral advocate, showing how Augustinian doctrine answers rather than creates the spiritual anxieties his opponents raised.

This treatise became a crucial bridge between Augustine's complex theological legacy and subsequent Western Christian orthodoxy on grace and salvation. Medieval theologians regularly consulted Prosper's clarifications when interpreting Augustine, and the work influenced conciliar statements on grace throughout the fifth and sixth centuries. Readers seeking to understand how Augustine's doctrine of grace was received, refined, and transmitted should engage this text, as should anyone studying the development of Western teaching on predestination and free will. Those looking for original theological insight rather than faithful exposition and defense of established doctrine will find less to engage them here.