Revelation 2:9, 13, 19
Revelation 2:9 NKJV
“I know your works, tribulation, and poverty (but you are rich); and I know the blasphemy of those who say they are Jews and are not, but are a synagogue of Satan.
Revelation 2:19 NKJV
“I know your works, love, service, faith, and your patience; and as for your works, the last are more than the first.