In this short story from Nathan Englander's collection For the Relief of Unbearable Urges, a Protestant, after a religious awakening in the back of a New York taxi, realizes he has a Jewish soul.
Used availability for Nathan Englander's The Gilgul of Park Avenue
March 2007 : USA Audio edition
Title: The Gilgul of Park Avenue: A Short Story from 'For the Relief of Unbearable Urges'
Author(s): Nathan Englander
Publisher: Random House Audio