John Cassian, On the Incarnation of the Lord, Against Nestorius I.4: Leporius together with some others recants his Pelagianism

But still as those who were the outcome of this stock of pestilent thorns have already by the Divine help and goodness been healed, we should also now pray to our Lord God that as in some points that older heresy and this new one are akin to each other, He would grant a like happy ending to those which had a like bad beginning. For Leporius, then a monk, now a presbyter, who followed the teaching or rather the evil deeds of Pelagius, as we said above, and was among the earliest and greatest champions of the aforesaid heresy in Gaul, was admonished by us and corrected by God, and so nobly condemned his former erroneous persuasion that his amendment was almost as much a matter for congratulation as is the unimpaired faith of many. For it is the best thing never to fall into error: the second best thing to make a good repudiation of it. He then coming to himself confessed his mistake with grief but without shame not only in Africa, where he was then and is now, but also gave to all the cities of Gaul penitent letters containing his confession and grief; in order that his return to the faith might be made known where his deviation from it had been first published, and that those who had formerly been witnesses of his error might also afterwards be witnesses of his amendment.