I am seeing two extremes here in this thread. And both conclusions are wrong. Though some of the word study is great.
First, Jesus didn't destroy the law, He fulfilled the law. That means, as was pointed out by another poster, that He obeyed it precisely. Now, when we become born again, and are baptized into His body, His fulfillment of the law is imputed unto us, FOR ALL TIME, because we have become Him, we are the body of Christ.
Therefore, we are no longer required to follow the letter of the law, but the spirit of the law, which, Paul said, is fulfilled in one word, "Thou shalt love thy neigbor as thyself, because love works no ill to its neighbor".
Truly, though, this was always the case as one can see from the example of Jesus disciples plucking and eating corn on the sabbath. The law was never intended to be followed to the letter, but by the spirit. This was the mistake of the Jewish leaders, many of which wrote the Torah, and who Jesus opposed. As Jesus explained, David broke the letter of the law when he ate of shewbread when he was running from Saul, and it was lawful for him. And Jesus said it was lawful for his disciples to pluck corn on the sabbath, and Jesus healed on the sabbath. In fact, the law of God shows us how impossible it is to codify behavior. No matter how involved the law is, letter of the law can never cover a persons motives and state of heart for all situations.
The law is there to lead us to Christ (Gal. 3). The world is under the law, and it will be under it until the end, and then the law will judge them. That is why Jesus said, until heaven and earth pass, not one jot or one tittle shall be removed from the law.
But for the Christian, the law has been imputed as fulfilled to each of us, and it is only the spirit of the law, to love your nieghbor as yourself, that we are to aspire to. We don't have to worry about which day is the sabbath, or what time the sabbath begins, 6 or 7 o'clock, (this is all letter of the law bondage), but yet we still obey the sabbath, because every day is the sabbath, it is a state of the heart now. We don't have to worry about how much is the tithe, or whether it should be on the net or the gross, or should we tithe student loans, and/or tax returns, or make up missed tithes, (this too is all letter of the law bondage), yet we still tithe, because all our money belongs to God, not just 10%, it is now a state of the heart.
I could go on and on with each law, there is the letter of it, and the spirit of it. If you cant see what I am saying, then mabey you dont have a revelation of grace at all. I would spend some time in prayer, seeking the real living Jesus, if that is the case.
Peace...