Revival of the Hebrew language well-recognized sources, chiefly the Tanakh (especially those portions used liturgically like the Torah, Haftarot, Megilot, and the Book of Psalms) and the Mishnah. Apart from these, Hebrew was known through hymns, prayers, midrashim, and the like. During the Middle Ages, Hebrew continued in use as a written language in Rabbinical literature, including in judgments of Halakha, Responsa, and books of meditation. In most cases, certainly in the base of Hebrew's revival, 18th- and 19th-century Europe, the use of Hebrew was not at all natural, but heavy in flowery language and quotations, non-grammatical forms, and mixing-in of other languages, especially Aramaic.
Hebrew language used to indicate variations in the pronunciation of the consonants (e.g. "bet"/"vet", "shin"/"sin"); and, in some contexts, to indicate the punctuation, accentuation, and musical rendition of Biblical texts (see Cantillation). Hebrew has always been used as the language of prayer and study, and the following pronunciation systems are found. Ashkenazi Hebrew, originating in Central and Eastern Europe, is still widely used in Ashkenazi Jewish religious services and studies in Israel and abroad, particularly in the Haredi and other Orthodox communities. It was influenced by the Yiddish language. Sephardi Hebrew is the traditional pronunciation of the Spanish and Portuguese Jews and