John MacArthur :: Bible Introduction - Hebrews

When the various NT books were formally brought together into one collection shortly after A.D. 100, the titles were added for convenience. This epistle’s title bears the traditional Greek title, “To the Hebrews,” which was attested by at least the second century A.D. Within the epistle itself, however, there is no identification of the recipients as either Hebrews (Jews) or Gentiles. Since the epistle is filled with references to Hebrew history and religion and does not address any particular Gentile or pagan practice, the traditional title has been maintained.