needs a code for classifying people to know where they stand in the system. Observant Jews will be concerned that the proper lines and boundaries be maintained. Marginal objects as well as people are to be shunned and kept away from the space of full and holy Israelites. Persons of lesser purity rank should not intrude on the space of those of higher purity status; this would apply in the case of intermarriage and other forms of social intercourse. It is not surprising, then, that a group like the
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