Jesus evaluates and assesses the angels of the churches of Asian Minor (Revelation 2-3). On what basis? What does He know about them?
Mainly, He knows their works (erga), as He repeatedly says: “I know your works” (2:2); “I know your works” (2:19); “I know your works” (3:1); “I know your works” (3:8); “I know your works” (3:15). Twice He mentions other things that He knows – what the angel at Smyrna suffers (2:9) and where the angel of Pergamum dwells (2:13).
But the accent is on works. Not only at the end, but in history Jesus judges according to works.