Augustine of Hippo

...whither was He sent except to the place where He already was? For He who says, "I fill heaven and earth," was everywhere. But if it is said of the Father, where could He be without His own word and without His own wisdom, which "reacheth from one end to another mightily, and sweetly ordereth all things?" But He cannot be anywhere without His own Spirit. Therefore, if God is everywhere, His Spirit also is everywhere. Therefore, the Holy Spirit, too, was sent thither, where He already was. For he, too, who finds no place to which he might go from the presence of God, and who says, "If I ascend up into heaven, Thou art there; if I shall go down into hell, behold, Thou art there;" wishing it to be understood that God is present everywhere, named in the previous verse His Spirit; for He says, "Whither shall I go from Thy Spirit? or whither shall I flee from Thy presence?"