Created man (and, expressly, woman) "in his own image". This expression is so vague, so imprecise that it can only be read as an emotional feel-good proposition, as distinct from a factual one. Or is the Judeo-Christian God an hermaphrodite example of H sapiens sapiens?
"your body is a temple of the Holy Spirit" ─ again the words are examined but no precise meaning is found. It can only refer to a state of mind along the lines of, "the Lord is with me", not to any real condition of the body ─ otherwise we'd have an objective test for whose body was such a temple and whose was not.
Rather, "In that day you will know that I am in my Father, and you in me, and I in you" ─ that is, Jesus is saying that through him, anyone can be united with the God Jesus serves and worships. The author of John, like Paul, was a gnostic-flavored believer, and both envisaged God as entirely spirit, immensely remote and immensely pure; for them, but not for the synoptic authors, Jesus pre-existed in heaven with God, and in the gnostic role of demiurge ("craftsman") created the material universe (1 Corinthians 8:6), John 1:3), which God would never do [him]self, and then became the necessary mediator between material humans and this remote purely spiritual God.
The Jesuses of Mark, Matthew and Luke, on the other hand, are directly the envoys of God, the God whom any believer can address directly and without mediation, as the Jews had always done.