For the source text click/tap here: Kiddushin 70
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The fourth chapter of Massekhet Kiddushin, Perek Asarah Yuhasin, began on daf 69a with a Mishna that discussed the levels and characteristics of the families that returned to Israel from Bavel at the beginning of the Second Temple period. Specifically, the Mishna focused on which types of families were permitted to marry other families, and which were limited regarding the families that they were allowed to marry.
Converts are like Sapachas Rabbi Chelbo said: Converts are as harmful to the Jewish people as sapachas (a type of tzara’as). Rashi explains that this is because converts are not so meticulous in the performance of mitzvos, and those Jews who observe this behavior will become influenced by them.
We explore the notion of yichus and genealogy with specific focus on the convert.