OK, here's what I put together in the last hour or so. Sorry for it's length and that I just got tired of writing ....................
As you know, John’s gospel begins with a prologue announcing that Jesus is the Word of God, a pre-existent being, made flesh and witnessed by John, the Baptizer.
John announces ” Indeed, from his fullness we have, all of us, received – yes, grace in return for grace, since though the Law was given through Moses, grace and truth have come through Jesus Christ. No one has ever seen God; it is the only Son, who is nearest to the Father’s heart, who has made him known.” (Jn 1:16-18)
The opposition of Moses/Jesus is initiated in the opening verses of the text as is the theme, often repeated, that no one knows the Father except through the Son. So, “the Jews” did not know the Father, did not understand what Judaism was supposed to concern until Jesus arrived to set the record straight. This Christology is set in opposition both to Mark’s view of Jesus, who appears as a miraculous man possibly adopted by God, and to the earlier conception of Judaism as interpreted by “the Jews” (the Jewish leaders, in particular, the Pharisees who were mostly concerned with Law).
Now the Johannine community must have had a problem with John the Baptist because this was a man, particularly in Mark, who preached repentance of sins before the Kingdom of God arrived; so the Baptist is transformed in John’s story into a witness, and we never actually see him baptize anyone – particularly not Jesus (which would have made no sense given Johannine Christology). John twice refers to Jesus as the lamb of God (and once as the one who takes away the sins of the world); and, interestingly the question John’s disciples (who become Jesus’ disciples) ask Jesus is, “Where do you live?” This narrative section ends with the proclamation that the disciples will see “heaven laid open”, implying that is where Jesus really lives. Along the way, as you know, the author denigrates Peter (first occurrence) by mentioning that he was brought into the community by his brother Andrew (who was previously a follower of the Baptist) in opposition to the story in Mark where they are called together and Andrew is barely mentioned again.
The miracle at Cana we have discussed previously – suffice it to say that Jesus both turns the water into wine and serves as the bridegroom (as he is often depicted and clearly referred to by John later (Jn 3:29); so Jesus has kept the best wine until now. We can quibble over whether or not the best wine refers to the new Johannine Christology (in opposition to Mark’s Christology) or to a new conception of how Judaism works, but I see no reason to suppose that it does not refer to both. I tend more toward this being a reference to their view of Judaism, but it’s not a big deal.
Next up is the cleansing of the Temple – a clear reference to the destruction of the Temple. But, in opposition to earlier treatments, in John’s hands Jesus draws a direct parallel between the Temple and his body. He implies that his resurrection is a restoration of the Temple in some sense – because the Johannine community lived in the post-Temple period and needed to refashion what that meant in relation to their faith and Jesus. This Jesus seems the perfect fulfillment of the Temple period, since he will provide the perfect sacrifice to replace all other sacrifices (so the Johannine group could see itself as followers of the true Temple -- Jesus).
Notice that this occurs during Passover, where sacrifice was commonly provided at the Temple (granted it was done at other times as well for those living in Judea). But the Passover and Temple is linked to Jesus’ body, and we have just heard that he is the lamb of God (twice, and once that he takes away the sins of the world) , and there is a transformation of water into wine juxtaposed before this, wine being one of the symbolic “foods” at Passover, as you know.
I think the implication is that Jesus transcends the Passover, that he is what is truly important, even more than the temple (obviously, since it no longer exists by the time the gospel is written and God would not have allowed that unless there was a reason), with a further reference (again, this is my opinion) to the wine, his blood, in the Eucharist tradition. The next Passover meal/ miracle is associated with bread.
Next up is the conversation with Nicodemus – that one must be born from above in water and the Spirit; the evangelist restates the previously alluded to theme that Jesus comes to save the world and that he accomplishes this feat by his arrival and his death (not a future return, in contradistinction to Mark, as you have previously argued, and I agree). He also repeats the theme of darkness and light (Jesus as light) and implies – later explicitly states – that those who reject the Son reject the Father. Or, that “the Jews” reject their own tradition, properly understood.
Next is the trip through Samaria and his discussion with the woman at the well about the water of life. Water/wine is maintained as the theme with the first Passover. The woman specifically asks if Jesus claims to be greater than Jacob, and he implies that he is because the water that he will give brings eternal life – again, he transcends the traditional Jewish figure. Then Jesus tells her, “Believe me, woman, the hour is coming when you will worship the Father neither on this mountain nor in Jerusalem. You worship what you do not know; we worship what we do know; for salvation comes from the Jews. But the hour will come – in fact it is here already – when true worshippers will worship the Father in spirit and truth: that is the kind of worshipper the Father wants. God is spirit, and those who worship must worship in spirit and truth.” (Jn 4:21-24). In other words, the old Temple tradition is going to pass, but the real Judaism, the real way to worship God is to worship Him in spirit and truth through belief in Jesus.
The return to Galilee, from the first trip to Jerusalem, is capped by the cure of the nobleman’s son, performed specifically while Jesus is again in Cana, as a sort of reproach – “So, you will not believe unless you see signs and portents” – despite the fact that Jesus repeatedly performs miracles for the purposes of inculcating belief. The first Passover narrative is bookended by the first two signs, both performed at Cana, like this is one narrative unit.
I’m afraid, however, that I’m at a bit of a loss to explain why this sign is given right here in the story and how it fits into the narrative structure as a whole except that it fits the theme of “curing” the people from the misguided teaching of “the Jews” and can be paired with the new wine – the proper way to view Judaism in light of Jesus’ ministry.
Next is the cure of the sick man at Bethesda, which I think serves as a transition to the next narrative unit which surrounds the second Passover. You will recognize the basic outline/point of the story from Mark – performing a cure on the Sabbath and “Get up, pick up your sleeping mat and walk”. But I think he also symbolizes the transition of Judaism from the fall of the Temple to the time of the writing of the story. I’m stretching things a bit here, but there must be some reason why he is afflicted for 38 years. As I mentioned in an earlier post, this would put the creation of this story, which may have been added later – it begins with the same “some time after this” as does the next narrative unit – around 108. The man, like the Jewish people who would be left adrift by the destruction of the Temple, is cured by Jesus who tells “the Jews” that “whoever listens to my words, and believes in the one who sent me, has eternal life”. (JN 5:24)
The next narrative unit, surrounding the second Passover, is where I think the story of Israel’s history is symbolically replayed. This Passover is tied to bread (continuing the theme of using the symbolic Passover foods), and we get the bread of life passages.
The last narrative unit is the last Passover and Passion. The lamb is the symbol here, as Jesus is sacrificed on Preparation day. The teachings are primarily concerned with two things – to see me is to see the Father, to believe me is to believe in the Father; and stay true to the message because tribulation is coming. The idea that accepting Jesus means accepting God fits nicely with the idea that this group saw themselves as the inheritors of the “true Judaism”.
With the crucifixion we see the Romans giving Jesus vinegar (wine) and piercing his side – and out comes water and blood (Eucharist and reversal of the miracle at Cana). And, as you have pointed out, Jesus famously proclaims, “It is done”, because his sacrifice is all that is needed, no new work to be done in a rapidly approaching second coming.
OK, I’m already petering out, and this is way too long, so I’m just gonna stop now.