In A.D. 135, at the end of the Jewish rebellion against Roman domination, the emperor Hadrian passed laws forbidding circumcision, the keeping of the Sabbath, and the study or teaching of the Torah. Though aimed at the Jews, these laws affected the course of the young Christian church to a greater degree than many realize. Because Jewish Christians refused to join in the war against Rome, Bar Kochba, the self-proclaimed messiah of the Jews, persecuted them. Thus these Christians found themselves treated unmercifully by fellow Jews and at the same time rejected by the Romans because of their illicit religion....