The expulsion of the Lutherans from the Catholic Archbishopric of Salzburg and adjacent Berchtesgaden is a prominent example of early modern confessional migration. Until now, however, the liberal support these emigrants enjoyed from Jewish individuals and entire Jewish communities on their way to Brandenburg-Prussia and other Protestant territories has not yet received any scholarly attention of note. Based on contemporary sources, this article analyzes all known cases of Jews aiding these expellees. While anti-Jewish sentiments widely persisted among German Lutherans, pietist theologians cultivated a mission-oriented philo-Judaism, interpreting the Jews' help for the emigrants as a harbinger of a lasting Jewish-Christian rapprochement. The Jews' support challenged classical anti-Jewish stereotypes by turning the traditional roles of Jews and Christians in pre-modern society upside down.