Why did the Holy Spirit descend upon the Church after the Lord was glorified through His suffering, crucifixion, death, burial, resurrection, and ascension to heaven?

The Evangelist says, “ since Jesus had not yet been glorified ” (John 7:39). What does this glory that had not yet been fulfilled mean here? He had not yet been taken to trial, nor whipped, crucified, and died in the flesh. Nor had He yet been buried, nor risen and ascended to the heavens. He considers these events in the life of the Lord Christ to be His glorification, since all of this was not the fruit of any sin He committed, but rather for the sake of His love and His desire for the salvation of sinners. St. Cyril the Great says that all that the Lord Christ did was for our sake.

The role of the Holy Spirit here is to take all that is Christ’s and declare it to us; and thus to make it our own. For our sake, He was led to judgment and was unjustly condemned. So now if we are unfairly judged, we are counted as partakers of the suffering Christ; for Christ, to whom be the glory, counted His suffering as glorifying Him. He accepted it with joy for our sake; so, we also count it as a glory for us when we share in the suffering of love, especially if it is unjust.

Let us sing then, by the Holy Spirit, with the apostle Paul: “I have been crucified with Christ; it is no longer I who live, but Christ lives in me” (Gal. 2:20). For our sake He was buried, and His soul went down to Hades to bear the souls of those who died in hope, bestow upon them His own righteousness, and offer them as the spoils of victory to His rejoicing Father. And as with the crucifixion, so also with the resurrection and ascension, through which the heavens have become our eternal home.