Selection from Apocalypse Explained ~ Emanuel Swedenborg
Jesus cried with a great voice, saying, If any man thirst, let him come unto Me, and drink. He that believeth on Me, as the Scripture saith, out of his belly shall flow rivers of living water. This He saith of the spirit which they that believe on Him were to receive; the Holy Spirit was not yet, because Jesus was not yet glorified (John 7:37-39).It is clear from this that the Holy Spirit is Divine truth, proceeding from the Lord, which flows in with man, both immediately from the Lord Himself and mediately through angels and spirits; for the Lord says first, that he who believes on Him, out of His belly shall flow rivers of living water, and then that He spake this of the spirit which they were to receive; for "water" in the spiritual sense, signifies truth, and "rivers of living water," Divine truth from the Lord in abundance; the like is therefore meant by "the spirit which they were to receive." ...
And as Divine truth proceeds from the glorified Human of the Lord and not immediately from the Divine Itself, for this was glorified in Itself from eternity, so it is here said, the Holy Spirit was not yet, because Jesus was not yet glorified.That to "glorify" is to make Divine -The Lord fully glorified His Human, that is, made it Divine by His last temptation and victory on the cross
It is greatly wondered at in heaven that the man of the church does not know that the Holy Spirit, which is Divine truth, proceeds from the Lord's Human, and not immediately from His Divine, when yet the doctrine received in the whole Christian world teaches that:
As is the Father so also is the Son, uncreate, infinite, eternal, omnipotent, God, Lord; neither of them first or last, nor greatest or least. Christ is God and man: God from the nature of the Father, and man from the nature of the mother; but although He is God and man, yet they are not two, but one Christ; He is one, but not by changing the Divine into the Human but the Divine took the Human to Itself. He is altogether one, not by a mingling of two natures, but He is a single person, because as body and soul are one man, so God and man is one Christ. (This from the Creed of Athanasius).Now as the Divine and the Human of the Lord are not two, but a single person, and are united as soul and body, it may be known that the Divine which is called the Holy Spirit goes out and proceeds from His Divine through the Human, thus from the Divine Human - for nothing whatever can go forth from the body except from the soul through the body, since all the life of the body is from its soul.
And since "As is the Father so is the Son, uncreate, infinite, eternal, omnipotent, God and Lord, and neither of them is first or last, nor greatest nor least," it follows that -
The proceeding Divine, which is called the Holy Spirit proceeds from the Divine Itself of the Lord through His Human, and not from another Divine that is called the Father;for the Lord teaches that the Father and He are one, and that the Father is in Him and He in the Father. But the reason why most of those in the Christian world think otherwise in their hearts, and thence believe otherwise, is, the angels said, because they think of the Lord's Human as separate from His Divine, although this is contrary to the doctrine which teaches that -
the Divine and the Human of the Lord are not two persons, but a single person, united as soul and body.That this should be the doctrine of the whole Christian world was provided by the Lord, because it is the essential of the church, and the essential of the salvation of all. But they have divided the Divine and the Human of the Lord into two natures, and have said that the Lord is God from the nature of the Father, and man from the nature of the mother, because they do not know that when the Lord fully glorified His Human He put off the human from the mother, and put on a Human from the Father....
(Apocalypse Explained 183:10, 11)