Abstract

Isidore of Seville did not leave behind any specifically trinitarian, Christological or pneumatological treatises. We find his theological doctrine evident in sections throughout his works although, as a result of the effort of a good compiler and synthesizer, it is not difficult to trace the passages in which the bishop of Seville deals with each one of these subjects. With regard to the doctrine on the Holy Spirit, the chapter dedicated to the third person of the Trinity in the first book of the Sententiae offers a fairly complete summary of the matter. The following pages are intended to present the content of that chapter and to place it within the context of the rest of Isidore’s theological output. Therefore, in addition to paying close attention to the text of the Sententiae, we will seek its dependence or influence, as the case may be, on other treatises of Isidore, mainly in these three: Etymologiae, De fide catholica and Liber differentiarum [II]. Augustine, Gregory the Great and the theological contribution of the Spanish councils are presented as Isidore’s main sources.