Acts 2:33

And again Peter ascribes the event to the Father. For he knows that this will draw on the listeners. Having spoken, "Having been exalted," and having approached the matter of the ascension, and that he is in the heavens. Therefore he did not speak plainly, …

Therefore also the Lord Jesus Christ Himself not only gave the Holy Spirit as God, but also received it as man, and therefore He is said to be full of grace, and of the Holy Spirit. And in the Acts of the Apostles it is more plainly written of Him, "Because God anointed Him with the Holy Spirit." Certainly not with visible oil but with the gift of grace which is signified by the visible ointment wherewith the Church anoints the baptized. And Christ was certainly not then anointed with the Holy Spirit, when He, as a dove, descended upon Him at His baptism. For at that time He deigned to prefigure His body, i.e. His Church, in which especially the baptized receive the Holy Spirit. But He is to be understood to have been then anointed with that mystical and invisible unction, when the Word of God was made flesh, i.e. when human nature, without any precedent merits of good works, was joined to God the Word in the womb of the Virgin, so that with it it became one person. Therefore it is that we confess Him to have been born of the Holy Spirit and of the Virgin Mary. For it is most absurd to believe Him to have received the Holy Spirit when He was near thirty years old: for at that age He was baptized by John; but that He came to baptism as without any sin at all, so not without the Holy Spirit. For if it was written of His servant and forerunner John himself, "He shall be filled with the Holy Spirit, even from his mother's womb," because, although generated by his father, yet he received the Holy Spirit when formed in the womb; what must be understood and believed of the man Christ, of whose flesh the very conception was not carnal, but spiritual? […]

Who then was exalted? The lowly or the most high? And what is the lowly if it be not the human? And what is the most high save the divine? But God being most high needs no exaltation, and so the apostle says that the …

"This Jesus" - observe how he does not call Him otherwise - "hath God raised up; whereof all we are witnesses. Being therefore by the right hand of God exalted": again he takes refuge with the Father, and yet it had been enough to say what precedes: but he knows what a great point this is. Here he has hinted at the Ascension also, and that Christ is in heaven: but neither does he say this openly. "And having received," says he, "the promise of the Holy Ghost." Observe how, in the beginning of his discourse, he does not say that Jesus Himself had sent It, but the Father: now, however, that he has mentioned His signs and the things done to Him by the Jews, and has spoken of His resurrection, he boldly introduces what he has to say about these matters, again adducing themselves as witnesses by both senses: "He hath shed forth this, which ye do see and hear." And of the resurrection he has made continual mention, but of their outrageous deed he has spoken once for all.

"And having received the promise of the Holy Ghost." This again is great. "The promise," he says; because promised before His Passion. Observe how he now makes it all His "He hath poured forth this", covertly making a great point. For if it was He that poured it forth, it is of Him that the Prophet has spoken above, "In the last days I will pour forth of My Spirit on My Servants, and on Mine handmaids, and I will do wonders in the heaven above." Observe what he secretly puts into it! But then, because it was a great thing, he again veils it with the expression of "His having received of the Father." He has spoken of the good things fulfilled, of the signs; has said, that He is king, the point that touched them; has said, that it is He that gives the Spirit.