"Gershom", "Gershomi" or "Beta Gershom" has also been seldom used as an alternative to "half-Jewish" and "part-Jewish" in connection with descendants of intermarriage, Gershom being the biblical son of Moses and his Midianite wife Zipporah. The term typically has no religious meaning, as terms like Jewish Christian do, but rather describes ethnic Jewry. Other non-religious definitions The Society for Humanistic Judaism defines a Jew as "someone who identifies with the history, culture and fate of the Jewish people". In their view it is, therefore, possible for a non-religious individual to adopt Judaism and join a Humanistic Jewish community, and for the Society for Humanistic Judaism to adopt the person wanting to be part of the Humanistic Jewish family. As Israeli author Amos Oz puts it, "a Jew is anyone who chooses or is compelled to share a common fate with other Jews." Oz summed up his position more succinctly in a monologue published in Tikkun, saying "Who is a Jew? Everyone who is mad enough to call himself or herself a Jew is a Jew.". From a similar perspective it is possible for a person born and raised as a Jew to leave Judaism and no longer be a Jew: famous historical examples are Heinrich Heine, Benjamin Disraeli, Gustav Mahler, Georg Brandes. Legal structure in Israel Israeli constitutional documents have not defined "who is a Jew" although the decision whether someone is Jewish or not has important legal, social and financial ramifications. This lack of definition has given rise to legal controversy in Israel and there have been many court cases in Israel that have addressed the question. Judaism test , anyone who immigrated to Israel after 1990 and wishes to marry or divorce via the Jewish tradition within the state limits must go through a "Judaism test" at an Orthodox Rabbinical court. In this test, a person would need to prove their claim to be Jewish to an investigator beyond a reasonable doubt. They would need to present original documentation of their matriline up to their great-grandmother (4 generations), or in the case of Ethiopian Jews, 7 generations back. In addition, they should provide government documents with nationality/religion shown as Jewish (e.g., birth/death certificates, marriage documents, etc.). In the case of people whose original documents have been lost or never existed, it may take considerable effort to prove they are Jewish. The court rulings are not final, and any