No Separation between "God" and the "Spirit of God"
    First of all it is wonderful to see that in verse one God makes no effort at all to explain His existence to Man, because we must come to Him in faith, believing that He is. We simply have the bold declaration, "In the beginning... God".
    With an equal lack of explanation in verse two, notice how the scriptures continue an uninterrupted unveiling of God to us when speaking of an action of God in saying, "the Spirit of God moved upon the face of the waters." We learn from these two verses that (1) God is, and that (2) He is spirit.

Question: Did God stop for an interlude, between these two verses to present "the Spirit of God" by any secondary definition of another person? No- He did not. Rather in a continual flow of thought, we see the very same God who is the Creator of all things spoken of in verse two as "the Spirit of God" who moved upon the face of the deep. There is no effort made (by God) to separate Himself into "co-equal persons" as is stated in the errant Athanasian Creed of 325AD.