Pergamos was a famous city of Troas; we read of Pergamos no where else in Scripture, but of Troas we read of Paul's being there, Acts 16:8,11 Acts 20:5,6, and preaching Christ there, 2 Corinthians 2:12. These things saith he which hath the sharp sword with two edges: see the notes on Revelation 1:16.
Related Commentaries of Revelation 2:12
Revelation 2:12
12 And to the angel of the church in Pergamos write; These things saith he which hath the sharp sword with two edges;