In Celtic religious studies, it is often difficult to find reliable textual sources if you are working with pre-Christian religion, since all text is written in a Christian context. As a result, Celtic scholars have to look outside of the pre-Christian Celtic context, to search for knowledge elsewhere. For example, one may use texts from Classical writers (such as Caesar) who wrote about Celts they encountered, or look to Christian material (in particular saints’ lives) to search for clues of pagan traditions which may have survived into Christianity. This has resulted in that certain Celtic pagan deities which we do not have a lot of information on, are compared to or even equated with other religious figures from outside of the pagan Celtic context. One such example is the pagan, Irish goddess Brigid, who is frequently equated with the Roman goddess Minerva, and also said to be the predecessor of the Christian Saint Brigid. Some also make comparisons between Minerva and the saint. This thesis aims to make an extensive textual analysis where all of these three characters are compared and discussed. Are they actually ‘the same’, and if not, how similar or different are they? Is the equating valid, or do we need to take another approach within the Celtic field? Using discourse theory and a comparative method, the research eventually shows that some of the characters’ most important traits are lost when we do equate them with each other.