The Tanach (Jewish Bible) is written in Hebrew.
It is important for both Jewish boys and Jewish girls to learn Hebrew. Hebrew is the language used for Jewish prayers and scriptures. Being able to read Hebrew will allow him to take part in Jewish prayer services. Modern Hebrew is the language used in Israel - which is the center of Jewish spiritual and cultural life.
Leviticus.
Yes, the Jewish Bible is composed entirely of Hebrew scriptures, with the exception of a few passages in Aramaic.
genesis
The first Christians were Jews and were accustomed to Jewish scriptures which became Christian scripture as well.
I believe the question you mean to ask is "How do you say 'hi' in Hebrew?", to which the answer would be "shalom." Jewish, however, is no more of a language than Christianity or Islam. What would your answer be if someone asked you "How do you say 'hi' in Christianity?" Please remember, Judaism is a religion, Hebrew is a language used in Jewish holy scriptures like the Torah.
yes
Judaism, Hebrew religon
The Talmud
Yes, he fulfilled all the things relating to him as set out in the Jewish scriptures.
Hebrew and Chaldean
The Torah (5 books of Moses)