Revelation 2 and 3 are letters from Jesus to seven churches in Asia Minor. We have already looked at the church in Ephesus and Smyrna, today we’ll look at the church in Pergamum or (Pergamos) Pergamum was one of the most prominent cities of Asia, located in the western part of Asia-Minor, about 45 miles north of Smyrna and about 20 miles from the Aegean Sea. Pergamum was very wealthy, the center of emperor worship with many temples devoted to idolatry. Here was the magnificent temple of Esculapius, a pagan god whose idol was in the form of a serpent. Greco-Roman god of medicine. (Bible.org:studies on Revelation)
Read text. Rev.2:12-17
Title of Christ. Him who has the sharp, double-edge sword. Rev.1:16 (John’s vision of Jesus) The word of God is described by the author of Hebrews as a double-edged sword. Hebr.4:12 (For the word of God is living and active, sharper than any double-edged sword, it penetrates even to dividing soul and spirit, joints and marrow, it judges the thoughts and attitudes of the heart.
Jesus is the one portrayed by John here and also in Rev.19:12 (Jesus strikes the nations with the sword that comes from his mouth). This is judgment.