The Nicene Creed: “And [we believe] in the Holy Ghost…”
With the annunciation of the Holy Spirit the Nicene Creed completes its Trinitarian formulation. But to understand the role of the Spirit in the Trinity we have to look back into the Creed. In doing so it will be come clear that the Holy Spirit isn’t a new phenomenon but an eternal participant with the Father and the Son in the creation, maintenance, and healing of the world.