The exact meaning of these features is not clear, but if it be remembered (a) that the Levites of post-exilic literature represent only the result of a long and intricate development, (b) that the name "Levite," in the later stages at least, was extended to include all priestly servants, and (c) that the priesthoods, in tending to become hereditary, included priests who were Levites by adoption and not by descent, it will be recognized that the examination of the evidence for the earlier stages cannot confine itself to those narratives where the specific term alone occurs.
Even the name Levite itself is of uncertain origin.
Of his earlier life it was said that he was born in Egypt of Levite parents, and when the Pharaoh commanded that every new-born male child of the Hebrews should be killed, he was put into a chest and cast upon the Nile.
There can be no reasonable doubt that the Levite here was member of a priestly tribe or order, and this view is confirmed by the discovery of what is really the same word in south Arabian inscriptions.
Bar-Nebo, lacks intrinsic fitness for a Jew and a Levite, and of course does not accord with the statement in Acts itself.