The Holy Ghost is a participator in the work of salvation and I’m confident we can find common ground in at least that sentiment.
I fully concur!
He is the Means that God uses to Reveal and Bring about everything… when we read the Revelation about Creation we find that Yahweh God Reveals Himself as the Creator, the One that Brings all things into Being. Yet, as it is further Revealed, we find that Christ is the One Who Created all that exists. Further still, it is Revealed that the Holy Spirit Creates all things…
Consider Jesus Resurrection. As the Word, Who is God from the Beginning, and Existed with God from the Beginning, He Declares that no one takes His Life from Him; that He Willingly puts it down/aside and that He will Take up again. Yet, we are Taught that the Father Resurrects the Son through the Holy Spirit–here again we have the Triune God Revealing His Mystery and Power: the Father, the Son, and the Holy Spirit Resurrect Jesus.
Finally, we have Jesus introducing the Coming of the Holy Spirit… He starts from His Ministry; ‘I have more things to tell (Reveal) you, but you are not ready to receive it (it’s beyond the theology Israel has learned and engages); when I return to the Father, I will Send you the other Paraclete, the Holy Spirit, whom the world cannot Know (see, understand, Receive), He will Bring you to the Fullness of Truth; He will remind you of my Teaching and will Unfold the Truth; I will Give Him my Word, that’s why He will Unfold the Truth and Keep you in the Truth; everything that I Know (Omniscience, Omnipotence, Omnipresence) I will Give to Him because everything that the Father Knows is Mine.’ (paraphrased)
It is Revealed to the Apostles that it was through the Holy Spirit that the Prophets Received God’s Prophecy and that nothing of God can be Received nor Understood but by and through the Holy Spirit.
…Much of what they’re expecting will come to pass and this person will not be Jesus Christ. Only, their deliverer will then testify of Christ as only THE testator can do.
Except that we are quite past that: Yahweh did indeed Come to the Temple; the Temple (the Old Covenant form of Worship) has been leveled and the New Covenant’s form of Worship (in Spirit–the Holy Spirit–and Truth–Christ) took effect at Pentecost Day.
The Christians who believe only Jesus will be coming will also be in for a surprise.
This is not just extra-Biblical but it is extra-Apostolic Teaching.
Maran atha!
Angel