Muslims, Jews, and the Good News

During the first few centuries after Jesus rose from the dead and returned to Heaven, thousands of Jews and their Arab neighbor were coming to Christ. They were first Christians. A few centuries later that was no longer happening. Gentiles were still joining the ranks but not large groups of Jews. What caused this dramatic shift? Why are both Jews and Muslims so resistant to the Gospel? Most evangelicals can not imagine how anyone can see another religion as being superior to Christianity. How c