Monastic Formation
Zosimus was raised at the monastery of Saint Lucy in Syracuse, the same community over which Saint Faustus was abbot. The tradition relates that as a boy he found the silence and labors of the monastery difficult and once left without permission to return to his parents, who scolded him and sent him back; the abbot received him again.
By tradition he was entrusted with the guardianship of the tomb of Saint Lucy in the monastery church. When the abbacy fell vacant, the account relates that he had been left behind to watch over the relics while the brethren consulted the bishop; the bishop, judging his humility a mark of fitness, appointed him abbot, after which his wisdom and virtue became evident in the governance of the community.