The Jew who remained a Jew was obliged to define his attitude towards the Jew who converted to Christianity, and indeed this had to be done in many spheres. The halakhah had laid down in principle the decision that a Jew who converted to Christianity was still, despite everything, a brother and a Jew, but this decision was eroded over time. The Rabbinic authorities were being asked Halakhic questions such as: is a convert regarded as a dead person or not? What happens in the case of the wife of a convert who remains Jewish? Can a convert bequeath or inherit possessions? Is the wine he produces “the wine of non-Jews” (that Jews were forbidden to drink)? What is the law applying to those who converted to Christianity and later returned to Judaism? Can they be trusted? Do they have to undergo immersion, like converts to Judaism?
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