Paul the Apostle and Jewish Christianity in the context of "Jewish Christians"

Pauline Christianity or Pauline theology (also Paulism or Paulanity), otherwise referred to as Gentile Christianity, is the theology and form of Christianity which developed from the beliefs and doctrines espoused by the Hellenistic-Jewish Apostle Paul through his writings and those New Testament writings traditionally attributed to him. Paul's beliefs had some overlap with Jewish Christianity, but they deviated from this Jewish Christianity in their emphasis on inclusion of the Gentiles into God's New Covenant and in his rejection of circumcision as an unnecessary token of upholding the Mosaic Law.

Proto-orthodox Christianity, which is rooted in the first centuries of the history of Christianity, relies heavily on Pauline theology and beliefs and considers them to be amplifications and explanations of the teachings of Jesus. Since the 18th century, a number of scholars have proposed that Paul's writings contain teachings that are different from the original teachings of Jesus and those of the earliest Jewish Christians, as documented in the canonical gospels, early Acts, and the rest of the New Testament, such as the Epistle of James, though there has been increasing acceptance of Paul as a fundamentally Jewish figure in line with the original disciples in Jerusalem over past misinterpretations, manifested through movements like "Paul Within Judaism".