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Jesus comes up out of the water and raises up the whole world with him. He sees the heavens rent open, which Adam had barred to himself and his posterity even as paradise was barred by a flaming sword. The Spirit comes to him as to an equal, bearing witness to his Godhead. A voice bears witness to him from heaven, because he had come from heaven. The Spirit descends in bodily form like the dove that so long ago announced the ending of the flood, and so gives honor to the body that is one with God.

Saint Gregory Nazianzen