First. The ACTS relate that at a time when the number of the disciples increased rapidly, "there arose a murmuring of the Grecians against the Hebrews, because their widows were neglected in the daily ministration" (vi. 1). This is the first difference within the early Church mentioned by the ACTS, and it sharpened into antagonism between the Palestinian and foreign members. Both classes were Jews by nationality. The only difference between them was that the native aboriginal Jews who used the Aramaean dialect, preserved the Jewish characteristics more purely and strictly, owing to their education and habits, while the others, either because they had formerly resided in other countries or were descended from foreign Jews, as a result of education and habit and of the use of the Greek language had assumed Hellenic modes of life, and readily mixed the foreign with the Jewish element, and were besides freer from national prejudices and Jewish narrowness.
from pages 112-113, The Apostolic and Post-Apostolic Times