This is wrong translation, with important meanings replaced.

Original text tells about etnic Jews who pretend to be Judaists as religion, not some other people who pretent to be Jews as etnicity.

ιδου δεδωκα εκ τηϲ ϲυναγωγηϲ του ϲατανα των λεγοντω̅ εαυτουϲ ιουδαιουϲ ειναι και ουκ ειϲιν αλλα ψευδονται ιδου ποιηϲω αυτουϲ ινα ηξουϲιν και προϲκυνηϲουϲι̅ ενωπιον των ποδων ϲου και γνωϲη οτι εγω ηγαπηϲα ϲε

Jews who supposed to be "ιουδαιουϲ" (Ioudaious) according to agreement with God, turned back to praising and following their "ϲατανα" (Satana) instead of God.

It is exact same Jews of Old Testament who become synagogue of Satan, instead of staying Judaists and following God's commandments.

"Jew" as etnicity in Greek will be "Εβραίος" (Ebraios).

This is wrong translation, with important meanings replaced.

Original text tells about Judaists as religion, not Jews as etnicity.

ιδου δεδωκα εκ τηϲ ϲυναγωγηϲ του ϲατανα των λεγοντω̅ εαυτουϲ ιουδαιουϲ ειναι και ουκ ειϲιν αλλα ψευδονται ιδου ποιηϲω αυτουϲ ινα ηξουϲιν και προϲκυνηϲουϲι̅ ενωπιον των ποδων ϲου και γνωϲη οτι εγω ηγαπηϲα ϲε

Jews who supposed to be "ιουδαιουϲ" (Ioudaious) according to agreement with God, turned back to praising and following their "ϲατανα" (Satana) instead of God.

It is exact same Jews of Old Testament who become synagogue of Satan, instead of staying Judaists and following God's commandments.

"Jew" as etnicity in Greek will be "Εβραίος" (Ebraios).