Chris Tann, any Jew professing a faith in Judaism could not reconcile Jesus with Messiah. This is mutually exclusive. If any person of Jewish faith decided to accept Christianity, he or she cannot claim to be in both faiths. Judaism and Christianity have different theology and beliefs that cannot be combined. Additionally you are trapped within Catholic foundation of Christianity that implemented concept of Original sin, which is foreigner in Judaism and this idea is channeled to various Protestant denominations in Northern America. If there is no original sin, there is no redeemer Jesus to pay your sins away. The centerpieces of Jewish faith is a direct relationship to G-d, not to dead guy to whom Paul assigned a divine attributes.
In the Jewish covenant, Israel is the body created and called by G-d as his tool of redemption to bring a divine reign of fruitation. This is opposite to what Christianity teaches where Jesus filled the role. Jesus did not fullfill messianic expectation of the Jewish nation. He was not king, nor gathered Jews from exile, renewed temple, nor was annointed by prophet. To them he was not priest, king, or prophet. Nothing in Christianity can change that. Redemption in Judaism is centered in love of G-d in soul, mind, and heart; where upholding divine Commandment heals the breech that seperate mankind with from Him. Jews do not seek out to reparing world, but restoring the world through the service to G-d.
michelle, there is also no credibility in NT. Christianity and Judaism does not believe in the same G-d. This is only your illusion as well as many of the Protestant movements around the world. Because Christianity uses texts that were written for Jewish faith, it still does not make Christianity a continuation of Judaism or gave them a divine gift of interpretation of the OT. Christianity corrupted the meaning of it and I am sure the rabbis and Jewsto whom OT is also part of their national and cultural identity for 2500 years understand much better than Protestant Bible preacher.