Joseph ben Hayyim Jabez (also "Yaavetz") (15th century-16th century) was a Spanish-Jewish theologian. He lived for a time in Portugal, where he associated with Joseph Hayyun, who inspired him with that taste for mysticism which he subsequently displayed in his writings. When the Jews were banished from Spain Jabez settled at Mantua, Italy. There he met his compatriot, the kabbalist Judah Hayyat, whom he induced to write the commentary Minḥat Yehudah on the cabalistic work Ma'areket Elahut.
Jabez was an opponent of philosophy. For him the truth of the Jewish religion is demonstrated by the miracles recorded in the Bible. He criticizes the thirteen articles of faith of Maimonides, the six of Hasdai Crescas, and the three of Albo. According to him, only the following three, alluded to in the verse "I am that I am" (Ex. iii. 14), are the fundamental principles of Judaism:
These dogmas are expounded by him in the following books:
Jabez left also a great number of manuscript works, which, according to Ghirondi, are still (as of 1906) in the possession of the author's descendants.
This article incorporates text from a publication now in the public domain: Jewish Encyclopedia. 1901–1906.