The holy language for Jews is Hebrew.
Hebrew!
Hebrew is not a religion, it's a language. The Hebrew language is spoken in Israel. Hebrew is considered a holy language by the Jewish people.
Hindu
Hebrew is considered a sacred language in many religious traditions, including Judaism, where it is believed to be the language in which God communicated with humanity.
Religions aren't "featured" by Hebrew. Hebrew is a language, not a showcase.
There is no such thing as the "Hebrew" religion, although in Bible times, one of the earliest names for the Jews was "Hebrews." These days, Hebrew is only a language, not a religion. Judaism, however, has approximately 14 million followers world wide. Hebrew is the language of prayer used by Jews all over the world; it is also the language much of the Hebrew Bible (Tanach) was written in, and in the country of Israel, it is the spoken language for daily life.
The sacred writings in a whole is called the TaNaKh which stands for Torah, Nevi'im and Ketuvim. It is written in the Jewish language called Hebrew, except for the books Ezra, Nehemiah, Daniel which are written in Aramaic.
About the same as you would learn any other language that is not your native language. It doesn't matter what religion you are.
Your question is too general to provide an exact answer. However in times past the language of religion was "Latin" and it is likely that if by "sacred music" you mean sung chants, then these would be in Latin.
It is Hebrew. Ivreet is the language of Hebrew in Hebrew.
Hebrew.Answer:While Hebrew is the dominant and holy language in Judaism, there are also some prayers and Jewish books written in Aramaic.