Clearly that text (which the RSV -- NOT a Catholic translation -- begins "Great is the mystery of our religion, which I got crawled for quoting the other day") is known to us. We say The Son is God; The Son is not the Trinity. So, with that understanding, the text does not contradict what I said.
So if you are correct, the Holy Spirit as well as the Father each could have physical manifestations...And you call it what???
Not at all. It is not the 'job' of the Father or of the Spirit to be incarnate. It's not necessary. God was in Christ, reconciling the world to himself, which was the point of the thing. So no need for another manifestation. Not from the RSV which is identical to the Catholic RSV Ignatius Edition.
Try the King James and compare it to Douay Rheims.
Any substantial difference?