Most historical Jesus and Gospel scholars have supposed three hypotheses of unidirectionality: geographically, the more Judaeo-Palestinian, the earlier; modally, the more oral, the earlier; and linguistically, the more Aramaized, the earlier. These are based on the chronological assumption of'the earlier, the more original'. These four long-held hypotheses have been applied as authenticity criteria. However, this book proposes that linguistic milieus of 1st-century Palestine and the Roman Near East were bilingual in Greek and vernacular languages and that the earliest church in Jerusalem...