Stoicism is one of the most important schools of philosophy of the ancient Greece. Nevertheless its study has been reduced only for ethic and moral issues, and, for this reason, its complexity is not much known. This paper expounds how all disciplines that Stoicism includes cannot been studied separately, because they all are an indissoluble whole. Therefore the relation between logic and theology is expounded in this paper, under the premise that the study of logic is a method to approach to the knwoledge of God (logos), and that this study cannot be separated of the other disciplines.