In this paper, we intend to investigate the narrator of Jacques le fataliste et son maître, by Diderot. We will explore how this narrative entity represents, fictionally and satirically, the figure of Spinoza's God. Beyond the narrator, we will argue that the novel is permeated by Spinozan philosophy, such as in the narrative's time and space. However, although in the first part of Jacques le fataliste, the narrator-author portrays an omnipotent and omniscient being, in the second half, they descend from their absolute pedestal and become powerless.