In recent years a number of scholars have focused on the phenomenon of Gentiles who, in varying degrees, adopted the lifestyle of the Jews. For John Gager they are important evidence for his generally persuasive argument that in the Graeco-Roman world Judaism, far from being universally mistrusted and vilified, was in both its beliefs and its practices often attractive to non-Jews. Gager, like L. Gaston and others before him, brought this observation to bear on the more specific issue of Jewish-Christian relations in the early centuries. For, so they have argued, Christian Gentiles were among those attracted to Judaism and the reaction of ecclesiastical leaders to this situation was a major cause of anti-Jewish sentiment in the early Church. Thus judaizing was not, as had often been assumed, restricted to the first generation of Christians (approx. pre-70 CE), but remained an urgent and troublesome issue.