The Council of Nicaea is a pivotal moment in Christian doctrinal formation. At a time of severe trinitarian and christological uncertainties, the council provided guidance to the early church in respect to the identity of Jesus and composition of the Godhead. There are, however, deficiencies both in the Nicene Creed and later conciliar pronouncements related to the composition of the Godhead–especially in relation to pneumatology. Witness Lee, a 20th century Christian thinker from the Global South, itemizes several pneumatological deficiencies of the ecumenical creeds, especially those related to the biblically articulated economic roles of the Spirit. This paper will examine those deficiencies and propose a path forward for orthodox, conciliar Christians to adequately embrace the totality of the biblical witness of the Holy Spirit. Care is taken in this essay to also identify historic Christian figures who identified a similar pneumatological “thinness” within the church’s earliest creedal confessions pertaining to the Holy Spirit.