Judeo-Arabic in the context of "Judeo-Arabic language"

Saʿadia ben Yosef Gaon or Said bin Yusuf al-Fayyumi (892–942) was a prominent rabbi, gaon, Jewish philosopher, and exegete who was active in the Abbasid Caliphate.

Saadia is the first important rabbinic figure to write extensively in Judeo-Arabic. Known for his works on Hebrew linguistics, Halakha, and Jewish philosophy, he was a student of the philosophical school known as "Jewish Kalam". In this capacity, his philosophical work entitled The Book of Beliefs and Opinions represents the first systematic attempt to integrate Jewish theology with components of ancient Greek philosophy. Saadia was also very active in opposition to Karaite Judaism in defense of Rabbinic Judaism.

Sifrei Kodesh (Hebrew: ספרי קודש, lit. 'Holy books'), commonly referred to as sefarim (Hebrew: ספרים, lit. 'books'), or in its singular form, sefer, are books of Jewish religious literature and are viewed by religious Jews as sacred. These are generally works of Torah literature, i.e. Tanakh and all works that expound on it, including the Mishnah, Midrash (Halakha, Aggadah), Talmud, and all works of Musar, Hasidism, Kabbalah, or machshavah ("Jewish Thought"). Historically, sifrei kodesh were generally written in Hebrew with some in Judeo-Aramaic or Arabic, although in recent years, thousands of titles in other languages, most notably English, were published. An alternative spelling for 'sefarim' is seforim.

The Book of Beliefs and Opinions (Judeo-Arabic: כתאב אלאמאנאת ואלאעתקאדאת; Arabic: كتاب الأمانات والاعتقادات, romanized: Kitāb al-Amānāt wa l-Iʿtiqādāt) is a book written by Saadia Gaon (completed 933) which is the first systematic presentation and philosophic foundation of the dogmas of Judaism.

The work was originally in Judeo-Arabic in Hebrew alphabet with quotations from the Torah. The first Hebrew translation was done in 1186 by Judah ben Saul ibn Tibbon, titled Emunot ve-Deot (Hebrew: אמונות ודעות Beliefs and Opinions). An unabridged translation into English by Samuel Rosenblatt was published in 1948.