I think we need to be careful about calling ourselves Jews, if we really aren't.
[NASB]
Rev 2:9; 'I know your tribulation and your poverty (but you are rich), and the blasphemy by those who say they are Jews and are not, but are a synagogue of Satan.
Rev 3:9; 'Behold, I will cause those of the synagogue of Satan, who say that they are Jews and are not, but lie—I will make them come and bow down at your feet, and make them know that I have loved you.
[KJV]
Rev 2:9; 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.
Rev 3:9; Behold, I will make them of the synagogue of Satan, which say they are Jews, and are not, but do lie; behold, I will make them to come and worship before thy feet, and to know that I have loved thee.
The word here is...
Ἰουδαῖος
Ioudaios
ee-oo-dah'-yos
From G2448 (in the sense of G2455 as a country); udaean, that is, belonging to Jehudah: - Jew (-ess), of Juda.
Total KJV occurrences: 196