12 He did not merely restore and strengthen the faith of the Christians, languishing and on the verge of collapse, but roused them also to weep for their own sins, to settle their disputes, to heal their divisions, to restore true morality. It seemed that, like his Divine Master, wherever he passed by doing good, a new spring blossomed forth, bright with heavenly flowers and fruits of salvation. Consequently, as tradition has it, he received from all, even from the schismatics, the significant title of "hunter of souls."
Source: Invicti Athletae (Vatican.va)