The first Church was Jewish. If a Gentile wanted to follow the Messiah, he had to convert to Judaism. Then Peter had a revelation that Gentiles did not have to convert to Judaism to be saved (see Acts 10). The Jerusalem Council meeting determined that Gentiles did not have to be circumcised. There were only four easily followed requirements. They were to abstain from things polluted by idols, from sexual immorality, from things strangled, and from blood (Acts 15:20). After all, James said, they could learn more about God by hear- ing the words of Moses every Saturday in the syna- gogue (see Acts 15:21). This opened the door to widespread church growth among the Gentiles. So many Gentiles were saved that the Jewish believers became a minority.
The first Jewish followers of Jesus were called Nazarenes (part of the Essenes sect of Judaism dis- cussed in Chapter 3). They practiced traditional Judaism and were widely accepted by unbelieving Jews. Early in the second century their numbers reached 400,000.1 In the Book of Acts, the early church fathers said to Paul: You see, brother, how many myriads [tens of thousands] of Jews there are who have believed, and they are all zealous for the law (Acts 21:20).
The Nazarenes acceptance by traditional Jews came to a halt in A.D. 135 when Rabbi Akiba declared that Bar Kochba was the Jewish Messiah. His followers hoped he would lead them to victory over the Romans. The Nazarenes refused to fight because they believed Jesus was the true Messiah rather than Bar Kochba. They were branded traitors, not because they believed in Jesus, but because they would not join Bar Kochbas armed struggle. Bar Kochba and his followers were quickly slaughtered by the Romans. Afterward, Jews were banned from Jerusalem.
History shows that as the center of the Christian faith moved from Jerusalem to Rome, it became increasingly Hellenized, adopting pagan customs and philosophies rather than the God-ordained practices and beliefs of the Bible. At the same time, Christianity became increasingly anti-Jewish."
(Sid Roth from his book The Incomplete Church, Chapter 7, page 64, 65)