Hi again Joseph,
I'm not sure if its my insomnia, a stinking cold, or the fact that the evidence just isn't there, but I still can't see how you can suggest John the Baptist and Jesus did anything but uphold the law. Jeremiah 31 when speaking of the new covenant doesn't suggest that the law would be abolished, but rather that it would be enhanced by God, for he declares in v.33; "I will put my law in their minds and write it on their hearts." This is exactly what Jesus, (and no doubt John the Baptist also) did and evidence of this is found in the Sermon on the Mount where Jesus teaches, by firstly reminding the people of the law on adultery and then saying; "But I tell you that anyone who looks at a woman lustfully has already committed adultery in his heart." (Matt 5:27,28)
As Jesus and the crowds came down the mountain, Matthew also reports his encounter with the leper. After curing the man Jesus then instructed him; "Go show yourself to the priest and offer the gift Moses commanded." (Matt 8:1-4) Similarly when questioned over healing on the Sabbath, Jesus didn't suggest the law was obsolete, but he used a common sense approach to it asking if it was lawful to do good or bad, to save life, or kill on the Sabbath. (Mark 3:4) He also reasoned that if an animal fell into a pit on a Sabbath, they wouldn't think twice about lifting it out, so what harm was there in healing on the Sabbath also. (Matt. 12:11-12) These are hardly the actions of someone who didn't uphold the law.
You also mentioned the Lords Supper and the new covenant found at Luke 22, but I can't even see how this abolished the law. All it did was establish a promise that if Jesus' disciples remained faithful they would have a share in the atonement of his redeeming death. This idea of a new covenant was not something new in Judea either, and the Dead Sea Scrolls reveal that the Essenes, also believed they had entered into a new covenant with God, to become a kingdom of priests and a holy nation. They seem to have believed that only they had the correct undrestanding of the Scriptures and that their Teacher of Righteousness was the prime interpreter of the Law and the Prophets. There seems to be many paralells with the Essenes, or Dead Sea Scroll community and Jesus' teachings, but my point is, they also looked to Jeremiah 31, but believed fidelity to the covenant demanded strict obedience to the law and the prophets.
Finally, I suppose I ought to lay my cards on the table and tell you where I come from, and some would say not on this planet no doubt. But in a previous post (360 re: Matt 5:17-20) I mentioned that I'd come to the conclusion that the apostacy in the early church was down to Paul. I know you take the opposite view and suggest the Jerusalem Elders became apostate for a time, before Paul brought them back into line. I base my conclusions, (although they're not set in stone and I'm more than willing to admit I'm wrong, if I see the proof, I hasten to add) but I base them on the fact that I can't find anything other than in Paul's writings which suggests Jesus intended to do away with the law. He came to fulfil the law by living to the very letter of it, even to his crucifixion and death, and thereby provide atonement for our sins and a way back to a closer relationship with God. To me, Jesus proved that it was possible for an ordinary man to live by the law and he was instrumental in writing the law on our hearts, certainly not in abolishing it.
If I'm right, this would have some rather dramatic consequences for "Christianity" and turn it on its head, as to me, it seems to be based more on Pauline teaching than on the teachings of Jesus. I think the clues are all there in the Scriptures, but it requires us to stand back and look at them from a fresh angle before we truly appreciate just how remarkable they are. Again, I'm not claiming I'm right, or that I have any divine inspiration, its just that these are the conclusions I have drawn after leaving JW's and attempting to look at the Scriptures again as if for the first time.
Regards
Steve J