For example, Acts 7:48, the literal context talks about David and Solomon planning to build/build a temple for God.
But you guys claimed it is about Christ. But if you want to spiritualize the passage like that to link to Christ, there are many different ways one can do so.
Who then decides which spiritualization about Christ is the correct one?
Instead of “spiritualize the message,” the correct term is “Typology.” The correct Old Testament typology is which ever one correctly points to Christ. I say “correctly” because there are many incorrect “Christ’s” in the world.
Yet the most High dwells not in temples made with hands; as says the prophet, - Acts 7:48
This was shown indeed already by what had been before said: but it is shown also by the voice of a prophet; What house will you build for Me? Says the Lord God. As says the prophet, Heaven is my throne, and earth is my footstool: what house will you build for me? Says the Lord: or what is the place of my rest? Hath not my hand made all these things? Isaiah 66:1-2
Heaven is my throne, and earth is my footstool: what house will you build me? says the Lord: or what is the place of my rest? - Acts 7:49
Nay, not even these are worthy of God, forasmuch as they are made, seeing they are creatures, the works of His hand. See how he leads them on little by little (showing) that not even these are to be mentioned. And again the prophecy says openly, What house will you build Me? etc.
Has not my hand made all these things? - Acts 7:50
Marvel not, he says, if they on whom Christ confers His benefits refuse His kingdom, seeing in the case of Moses it was just the same. What is the reason that at this point he speaks in the tone of invective (καταφορικὥς)? Great was his boldness of speech, when at the point to die: for in fact I think he knew that this was the case. You stiffnecked, he says, and uncircumcised in heart and ears. This also is from the prophets: nothing is of himself. You do always resist the Holy Ghost: as your fathers did, so do ye.
- St John Chrysostom
So, the question is Who was St Paul talking about? Who were resisting Christ? Who historically resisted the Lord their God (in the Old Testament)?