Abstract
The article deals with St. Augustine’s sermons about the Passio Vincentii, underlining that none of the versions that we know nowadays, were the model followed by St. Augustine. Regarding the vocabulary, the coincidences between the sermons and the Passio make clear that St. Augustine either was using a common vocabulary to refer to martyrdom, or that he has based himself in the Passio’s narratives, that were read before the sermon. It also states that Augustine’s silence of some the Passio’s details and his theological interest in the event as such, do not allow any conclusion about the text used by S. Augustine.