Each Just Man is a Lamed Vav, one of the thirty-six righteous souls whose existence justifies the purpose of humankind to God.
Mr. Weinstein's work on that project led to the more abstract "The Thirty-Six Unknown" (cf. Lamed vov-niks).
In the 2009 novel Let the Great World Spin by Colum McCann, the narrator of the Book One mentions hearing of the myth of "thirty-six hidden saints" while in college and compares the actions of his Christian brother Corrigan to one of the saints.
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The movie Time of the Wolf by Michael Haneke makes reference to the 36, a secondary character hinted as being one of them.