metis
aged ecumenical anthropologist
Hmmm, I tend to disagree with this. You really had two different schools of thought that were very disagreeable with each other. In Jerusalem under James you had the Nazarenes, all Jews, for whom believing in Jesus was a sect of Judaism. They were all "zealous for Torah," including continuing to sacrifice at the temple. Then you had the Gentile churches set up by Paul, whom he pretty much taught NOT to keep the law, degrading its worth.
But as they morphed, the latter became dominant as the Gentiles gradually dominated even by the latter 1st century. Splinter groups did gradually emerge but pretty much got absorbed in the 3rd and 4th centuries.
Where there was some differences even later where in areas not so much under Roman Control, such as in India and Ethiopia. However, in much more recent times, almost all of them merged with either the Catholic or the Orthodox churches.