David Lipscomb articulated a doctrine of God that was Trinitarian in shape; he viewed Scripture as depicting a God who is three-in-one and equal in per- sons. This article teases out the Trinitarian assumptions of his theology and its potential sources. Parts I and II examine Lipscomb’s Trinitarian vernacular and its exegetical dimensions. Part III offers a synthesis of Lipscomb’s Trinitarian doctrine, particularly its ontological and soteriological aspects. Finally, the article considers Lipscomb’s Trinitarianism in the context of the Stone-Campbell Movement.