[UntoHim]

ZNP,
As a former Local Churcher you should be intimately familiar with 1 Corinthians 15. I use the word "should" here advisedly, because the truth is that Witness Lee taught us all to have tunnel vision regarding this chapter. We all focused on verse 45"b"(the last Adam became a life giving spirit), so much so that we lost track of the context in which verse 45 should be placed in. The context - the immediate context - from verse 35 through the end of the chapter is crystal clear: "But someone will say, 'How are the dead raised? And with what kind of body do they come?' ".

To put the finest point possible on this part of the chapter, the apostle Paul is explaining to the Corinthians in the most basic and clearest way, that we have a physical "earthy" body which will be transformed "in the twinkling of an eye" into a "spiritual", "incorruptible" body. Verse 45, when taken in context of this section of chapter 15, is simply stating that Jesus Christ was the forerunner in this mysterious, glorious and wonderful transformation. If verse 45 is telling us that Jesus Christ became the Holy Spirit then we are all going to become the Holy Spirit

Anyway, from verse 35 to the end of the chapter is answering your question in vivid detail.