The Church began to divide shortly after Jesus' death.

The Book of Acts mentions a dispute in the early Church between Greek-speaking and Aramaic-speaking followers of Jesus. The Greek-speaking Jews felt their widows weren’t being treated as generously as the Aramaic-speaking widows, which marked the beginning of divisions.

Paul argued that Gentile converts should not be required to follow Jewish Law, including circumcision, but the Jerusalem Church, led by Peter and James, disagreed. While Acts describes some unity between the factions, the issue remained unresolved, and centuries later, Jewish Christians, like the Ebionites, continued following the Jewish Law while Gentile Christians did not.