I know thy works, and tribulation, and poverty, (but thou art rich) and I know the blasphemy of them which say they are Jews, and are not, but are the synagogue of Satan.
"Synagogue of Satan" as those "which say they are Jews, and are not..."
Who is / isn't a Jew? Romans 2:28-29, "For he is not a Jew, which is one outwardly; neither is that ci...