Read Revelation 2:9 Using Other Translations
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.
"'I know your tribulation and your poverty (but you are rich) and the slander of those who say that they are Jews and are not, but are a synagogue of Satan.
“I know about your suffering and your poverty—but you are rich! I know the blasphemy of those opposing you. They say they are Jews, but they are not, because their synagogue belongs to Satan.