(Note: Read the article for the context of these paragraph I have written, I am not going to quote each line from the article when making my two individual responses in the different paragraphs.)
The author here misses the point about both of the passages he references, and instead attempts to manipulate them into saying something about Mormonism. This tactic isn’t entirely atypical for Mormons.
First, when we read the context of John 4, the author is right in telling us that Christ is teaching that the manner of worship is not important, but then he completely misses the point when Christ gives us an explanation of his teaching in John 4:24. The context of this passage is the Samaritans woman polemic over the proper place to worship, either in Jerusalem, as the Jews say, or on Mount Gerizim, as the Samaritans say. In John 4:20, the Samaritan woman says, “Our ancestors worshiped on this mountain, but you Jews claim that the place where we must worship is in Jerusalem.” As we know from 1 Kings 8:11, and 2 Chronicles 5:14, the Temple(s) (the Samaritans at one time had a Temple of their own, until it was destroyed in the 2nd Century B.C) were believed the house the very presence of God at its fullest. Indeed, even after the destruction of both them, God was still thought of as being most present in these particular areas, and that is why the Temple Mount is still of such great importance in Judaism today. Because of this belief among both Jews and Samaritans, they thought, “how could we worship anywhere else where God is not fully contained?” But Jesus tells us something quite different, “believe me, a time is coming when you will worship the Father neither on this mountain nor in Jerusalem.” (John 4:21). Jesus makes a very radical departure from both Judaism and Samaritanism. He goes onto tell her that the Father seeks those who worship him in spirit and in truth (John 4:23), and his explanation for all of this is found in the next verse, John 4:24, where he says “God is spirit”; by telling the Samaritan women that God is spirit, he is telling her that God cannot be contained in a physical location because God himself is not physical, instead he is spiritual and can be present anywhere, so true worship comes not from worshiping at a mountain, but rather worship must be spiritual [in spirit] and in truth. Indeed, in Luke 24:39, Jesus himself says, “spirit does not have flesh and bones.”
Now, as for the authors interpretation of John 3:6, again, he is manipulating the actual meaning. In the context of the verse, Jesus is speaking to Nicodemus about being born again, that is, a spiritual renewal. In John 3:3 Jesus says, “Except a man be born again, he cannot see the kingdom of God”, (this verse can actually be translated from the Greek in two ways, either as “born again” or "born from above). Now, Nicodemus of course questions him about this (John 3:4), and Jesus explains to him in John 3:5-6, (jumping to John 3:6 here) “That which is born of the flesh is flesh; and that which is born of the Spirit is spirit.” That is, those who are of the flesh will do the ways of the flesh, but those who are of the spirit, having gone through spiritual renewal, will act according to the ways of the spirit (Romans 8:5), because the flesh and spirit are contrary to one another (Galatians 5:17).
The authors manipulation of the verses here are astounding, he wants to cause the reader to completely miss the point of what the verses are actually saying, and instead tries to feed them into Mormon doctrine when they both really having nothing to do with Mormon doctrine.