[OBW]

I think that it is sufficient to say that the nature of the trinity is not "simply" anything.

God is spirit. That means that the Father, Son and Spirit, are spirit. Don't be confused by the name of one of the Three being the same word as that common nature. That doesn't make them "simply" one person or "simply" each other.

And you have to determine what exactly is the translation. Is it that the "Lord is the Spirit" or the "Lord is the spirit?" I don't think the Greek answers that question. And even though we typically understand "Lord" to always mean the Son, is that entirely correct?

And ignoring the correctness of capitalization, is the statement "the Lord is the Spirit" intended to say that Jesus is the Holy Spirit, that the Holy Spirit is the Lord (acknowledged ruler) within us (without the presumption that Lord = Son), or that the Lord (the Son) is spirit (or some other alternative)?

I know Lee liked to make absolute statements like "there is only one spirit that gives life and it is the Holy Spirit." But that is not supported by the scripture that we have. All three are "spirit" and all three give life, and yet every one of the writers of scripture keeps referring to the three as if they are not simply the same. By what means and authority does Lee turn around and say that those statements attributing different characteristics to different "persons" of the trinity are irrelevant?

And, BTW, the next verse says that when the heart turns to the Lord (not the Spirit, and not the "human spirit") the veil is taken away.