During their years in Jerusalem, the Nazarenes sometimes called themselves followers of "The Way". By this, they apparently meant their way of life. According to Acts 4:32-33:
All the believers were one in heart and mind. No one claimed that any of his possessions was his own, but they shared everything that they had.
In addition to their insistence on sharing, the Nazarenes put a high value on devoutness, non-violence, and a very simple lifestyle. All of these ideas could have come directly from the teachings of Jesus. Many scholars have pointed out that the Nazarenes' lifestyle was similar to that of the Essenes. But theories about possible connections between the two groups are difficult to prove.
The origin of the name "Nazarenes" is uncertain. Because Jesus himself was sometimes called "the Nazarene", one frequent suggestion is that the name was derived from "Nazareth". But this can't be proven, and there are reasons to doubt it. Some of the uncertainty stems from the fact that ancient writers spelled the name in several different ways, including "Nazirenes", "Nazaraeans", and "Nazoreans".
Persecution of the Nazarenes
Even in the early days, when the Nazarenes were still a small group, they were already being persecuted by the local Jerusalem authorities. The stoning of Stephen, the first Christian martyr, is starkly described in Acts 7:54-60. The threat of further executions caused others in the group to temporarily go into hiding. It was during this period that Paul (then known as Saul) got involved in the persecutions, although it isn't clear how big a role he played.
Later, during another flareup of persecution, James the son of Zebedee was put to death with a sword. Peter would have probably also been executed, but an angel came during the night and helped him escape from jail. Apparently he avoided further trouble until his later years, but finally, according to church tradition, was killed in Rome. James the Just also managed to survive the early persecutions, but was eventually killed in 62 AD.
The Fate of the Nazarenes
After they fled from Jerusalem, the Nazarenes gradually became isolated from the main Christian movement. Despite this isolation, they still managed to survive for several centuries as an independent sect. Their survival was mentioned by several later writers, including Saint Jerome, who reported that he visited a community of them in the Syrian desert in about 380 AD.
Many scholars think that another group of them survived under the name Ebionites. These Ebionites recognized Jesus as the Messiah but considered him to be of normal human parentage. They adhered to the old Jewish laws, had their own gospel, and disapproved of the teachings of Paul. For these reasons, the fourth-century Bishop Epiphanius declared them to be heretics.
There aren't any reliable reports of what finally happened to either the Nazarenes or the Ebionites. Quite possibly both groups completely died out soon after the fourth century. However, a few scholars think that small communities may have survived for a longer period in remote areas. There has also been speculation that some late survivors were progenitors of medieval heretical groups such as the Cathars. But unless new information is uncovered, the final fate of the Nazarenes will remain a mystery.
Note: According to legend, a modern group of Christians known as the Nazarenes of Malabar (India) was founded by the disciple Thomas in 52 AD, and thus could be an offshoot of the original Nazarenes of Jerusalem. Another modern group, the Nazarenes of Mount Carmel, claims to be a "modern resurrection" of the ancient Nazarenes.