The Doctrine of Sin, The Second Period, 250-730 A.D. (18): The Pelagian Controversy: Semi-Pelagianism

We remarked at the close of our preceding article that the Augustinian and Scriptural doctrine of sin and grace is never popular. We may recall that Cassian, the founder and abbot of the monastery of Massilia, stood at the head of the Semi-Pelagian party. A certain Prosper Aquitanus, an Augustinian divine and poet, wrote a book against this Cassian, and he also composed a long poem in defense of Augustine and his system. But, the Semi-Pelagian doctrine was the more popular and made great...