However, there is a big difference between Jews and Christians. Only those who were born Jews could be Jews. There was no path to full communion with Judaism for a gentile. A Gentile might fully accept the Jewish religion, and undergo circumcision, but he would never be a Jew, and would never be accounted among the twelve tribes of the “Chosen People” and never be heirs to the promises that God made to Israel. So, why evangelize? The Jews have nothing to offer their converts.