why the Jew rejected Jesus as the messiah for over 2000 years

Here’s how one Jewish site answers the question:

http://www.hanefesh.com/Jewish-Christian_Talk.htm

It is important to understand why Jews don't believe in Jesus as the messiah. The purpose is not to disparage other religions, but rather to clarify the Jewish position. The more data that's available, the better -informed choices people can make about their spiritual path.

JESUS DID NOT FULFILL THE MESSIANIC PROPHECIES

What is the Messiah supposed to accomplish? The Bible says that he will:

A. Build the Third Temple (Ezekiel 37:26-28).

B. Gather all Jews back to the Land of Israel (Isaiah 43:5-6).

C. Usher in an era of world peace, and end all hatred, oppression, suffering and disease. As it says: "Nation shall not lift up sword against nation" neither shall man learn war anymore." (Isaiah 2:4)

D. Spread universal knowledge of the God of Israel, which will unite humanity as one. As it says: "God will being over all the world -- on that day, God will be One and His Name will be One" (Zechariah 14:9)

The historical fact is that Jesus fulfilled none of these messianic prophecies. Christians counter that Jesus will fulfill these in the Second Coming, but Jewish sources show that the Messiah fill fulfill the prophecies outright, and no concept of a second coming exists.

JESUS DID NOT EMBODY THE PERSONAL QUALIFICATIONS OF MESSIAH

1. MESSIAH AS PROPHET
Jesus was not a prophet. Prophecy can only exist in Israel when the land is inhabited by a majority of world Jewry. During the time of Ezra (circa 300 BCE), when the majority of Jews refused to move from Babylon to Israel, prophecy ended upon the death of the last prophets -- Haggai, Zechariah and Malachi. Jesus appeared on the scene approximately 350 years after prophecy had ended.

2. DESCENDENT OF DAVID
The Messiah must be descended on his father's side from King David (see Genesis 49:10 and Isaiah 11:1). According to the Christian claim that Jesus was the product of a virgin birth, he had no father -- and thus could not have possibly fulfilled the messianic requirement of being descended on his father's side from King David!

3. TORAH OBSERVANCE
The Messiah will lead the Jewish people to full Torah observance. The Torah states that all mitzvot remain binding forever, and anyone coming to change the Torah is immediately identified as a false prophet. (Deut. 13:1-4) Throughout the New Testament, Jesus contradicts the Torah and states that its commandments are no longer applicable.

4. MISTRANSLATED VERSES "REFERRING" TO JESUS
Biblical verses can only be understood by studying the original Hebrew text -- which reveals many discrepancies in the Christian translation.

5. VIRGIN BIRTH
The Christian idea of a virgin birth is derived from the verse in Isaiah 7:14 describing an "alma" as giving birth. The word "alma" has always meant a young woman, but Christian theologians came centuries later and translated it as "virgin." This accords Jesus' birth with the first century pagan idea of mortals being impregnated by gods.

6. CRUCIFIXION
The verse in Psalms 22:17 reads: "Like a lion, they are at my hands and feet." The Hebrew word ki-ari (like a lion) is grammatically similar to the word "gouged." Thus Christianity reads the verse as a reference to crucifixion: "They pierced my hands and feet."

7. SUFFERING SERVANT
Christianity claims that Isaiah chapter 53 refers to Jesus, as the "suffering servant." In actuality, Isaiah 53 directly follows the theme of chapter 52, describing the exile and redemption of the Jewish people. The prophecies are written in the singular form because the Jews ("Israel") are regarded as one unit. The Torah is filled with examples of the Jewish nation referred to with a singular pronoun. Ironically, Isaiah's prophecies of persecution refer in part to the 11th century when Jews were tortured and killed by Crusaders who acted in the name of Jesus. From where did these mistranslations stem? St. Gregory, 4th century Bishop of Nanianzus, wrote: "A little jargon is all that is necessary to impose on the people. The less they comprehend, the more they admire."

JEWISH BELIEF IS BASED SOLELY ON NATIONAL REVELATION

Of the 15,000 religions in human history, only Judaism bases its belief on national revelation -- i.e. God speaking to the entire nation, a historical event of a divine revelation.

Whereas all other religions bases itself on the prophetic claims of a single individual who subsequently convinced others to follow his ways. Any individual can claim that he received a great prophet or hade a divine dream; the great prophet cannot be proved or disproved.

Judaism is the only religion that states, “All 3 million Jews eye witnessed the revelation of God at Sinai" the witness generation all told the story to the next, leading us, in the current generation. It’s merely impossible to fake a mass public divine event, it's impossible to have all the witnesses lied to their own children, all you need is one witness to spill the beans. This historical event was never denied. Moses was obviously a true prophet as the Jewish people all saw God appointing him at the event.

Judaism, unique among all of the world's major religions, does not rely on "claims of miracles" as the basis for its religion. In fact, the Bible says that God sometimes grants the power of "miracles" to charlatans, in order to test Jewish loyalty to the Torah (Deut. 13:4) Maimonides (Foundations of Torah, ch. 8). The Jews did not believe in Moses, our teacher, because of the miracles he performed. Whenever anyone's belief is based on seeing miracles, he has lingering doubts, because it is possible the miracles were performed through magic or sorcery. All of the miracles performed by Moses in the desert were because they were necessary, and not as proof of his prophecy.

What then was the basis of [Jewish] belief? The Revelation at Mount Sinai, which we saw with our own eyes and heard with our own ears, not dependent on the testimony of others... as it says, "Face to face, God spoke with you..." The Torah also states: "God did not make this covenant with our fathers, but with us -- who are all here alive today." (Deut. 5:3)

Judaism is not miracles. It is the personal eyewitness experience of every man, woman and child, standing at Mount Sinai 3,300 years ago.

CHRISTIANITY CONTRADICTS JEWISH THEOLOGY

The following theological points apply primarily to the Roman Catholic Church, the largest Christian denomination

A. GOD AS THREE
The Catholic idea of Trinity breaks God into three separate beings: The Father, the Son and the Holy Ghost (Matthew 28:19). Contrast this to the Shema, the basis of Jewish belief: "Hear O Israel, the Lord our God, the Lord is ONE" (Deut. 6:4). Jews declare the Shema every day, while writing it on doorposts (Mezuzah), and binding it to the hand and head (Tefillin). This statement of God's Oneness is the first words a Jewish child is taught to say, and the last words uttered before a Jew dies.

In Jewish law, worship of a three-part god is considered idolatry -- one of the three cardinal sins that a Jew should rather give up his life than transgress. This explains why during the Inquisitions and throughout history, Jews gave up their lives rather than convert.

B. MAN AS GOD?
Roman Catholics believe that God came down to earth in human form, as Jesus said: "I and the Father are one" (John 10:30). Maimonides devotes most of the "Guide for the Perplexed" to the fundamental idea that God is incorporeal, meaning that He assumes no physical form. God is Eternal, above time. He is Infinite, beyond space. He cannot be born, and cannot die. Saying that God assumes human form makes God small, diminishing both His unity and His divinity. As the Torah says: "God is not a mortal" (Numbers 23:19).

Judaism says that the Messiah will be born of human parents, and possess normal physical attributes like other people. He will not be a demigod, and will not possess supernatural qualities. In fact, an individual is alive in every generation with the capacity to step into the role of the Messiah. (see Maimonides - Laws of Kings 11:3)

C. INTERMEDIARY FOR PRAYER?
The Catholic belief is that prayer must be directed through an intermediary -- i.e. confessing one's sins to a priest. Jesus himself is an intermediary, as Jesus said: "No man cometh unto the Father but by me."

In Judaism, prayer is a totally private matter, between each individual and God. As the Bible says: "God is near to all who call unto Him" (Psalms 145:18). Further, the Ten Commandments state: "You shall have no other gods BEFORE ME," meaning that it is forbidden to set up a mediator between God and man. (See Maimonides - Laws of Idolatry ch. 1)

D. INVOLVEMENT IN THE PHYSICAL WORLD
Catholic doctrine often treats the physical world as an evil to be avoided. Mary, the holiest woman, is portrayed as a virgin. Priests and nuns are celibate. And monasteries are in remote, secluded locations.

By contrast, Judaism believes that God created the physical world not to frustrate us, but for our pleasure. Jewish spirituality comes through grappling with the mundane world in a way that uplifts and elevates. Sex in the proper context is one of the holiest acts we can perform.

The Talmud says if a person has the opportunity to taste a new fruit and refuses to do so, he will have to account for that in the World to Come. Jewish rabbinical schools teach how to live amidst the bustle of commercial activity. Jews don't retreat from life, we elevate it.

JEWS AND GENTILES

Judaism does not demand that everyone convert to the religion. The Torah of Moses is a truth for all humanity, whether Jewish or not. King Solomon asked God to heed the prayers of non-Jews who come to the Holy Temple (Kings I 8:41-43). The prophet Isaiah refers to the Temple as a "House for all nations."

The Temple service during Sukkot featured 70 bull offerings, corresponding to the 70 nations of the world. The Talmud says that if the Romans would have realized how much benefit they were getting from the Temple, they'd never have destroyed it.

Jews have never actively sought converts to Judaism because the Torah prescribes a righteous path for gentiles to follow, known as the "Seven Laws of Noah." Maimonides explains that any human being who faithfully observes these basic moral laws earns a proper place in heaven.

BRINGING THE MESSIAH

Maimonides states that the popularity of Christianity (and Islam) is part of God's plan to spread the ideals of Torah throughout the world. This moves society closer to a perfected state of morality and toward a greater understanding of God. All this is in preparation for the Messianic age.

Indeed, the world is in desperate need of Messianic redemption. War and pollution threaten our planet; ego and confusion erode family life. To the extent we are aware of the problems of society, is the extent we will yearn for redemption. As the Talmud says, one of the first questions a Jew is asked on Judgment Day is: "Did you yearn for the arrival of the Messiah?"

How can we hasten the coming of the Messiah? The best way is to love all humanity generously, to keep the mitzvot of the Torah (as best we can), and to encourage others to do so as well. Despite the gloom, the world does seem headed toward redemption. One apparent sign is that the Jewish people have returned to the Land of Israel and made it bloom again. Additionally, a major movement is afoot of young Jews returning to Torah tradition.

The Messiah can come at any moment, and it all depends on our actions. God is ready when we are. For as King David says: "Redemption will come today -- if you hearken to His voice." (For further study, read "The Real Messiah" by Rabbi Aryeh Kaplan)