Analysis of information sources in references of the Wikipedia article "Messiah in Judaism" in English language version.
{{cite web}}: CS1 maint: postscript (link)A major difficulty in tracing the growth of Christianity from its beginnings as a Jewish messianic sect, although its relations to the various other normative-Jewish, sectarian-Jewish, and Christian-Jewish groups is presented by the fact that what ultimately became normative Christianity was originally but one among various contending Christian trends. Once the "gentile Christian" trend won out, and the teaching of Paul became accepted as expressing the doctrine of the Church, the Jewish Christian groups were pushed to the margin and ultimately excluded as heretical. Being rejected both by normative Judaism and the Church, they ultimately disappeared. Nevertheless, several Jewish Christian sects (such as the Nazarenes, Ebionites, Elchasaites, and others) existed for some time, and a few of them seem to have endured for several centuries. Some sects saw in Jesus mainly a prophet and not the "Christ," others seem to have believed in him as the Messiah, but did not draw the christological and other conclusions that subsequently became fundamental in the teaching of the Church (the divinity of the Christ, trinitarian conception of the Godhead, abrogation of the Law). After the disappearance of the early Jewish Christian sects and the triumph of gentile Christianity, to become a Christian meant, for a Jew, to apostatize and to leave the Jewish community.
Maimonides, as is well known, presents his primary account of the basic opinions of the Law in his so-called "thirteen principles," which are set down in the Introduction to Perek Helek of his Commentary on the Mishnah.