This third sermon in the series from Revelation 2 and 3 focuses on the church in the city of Pergamum. The city of Pergamum was the home for worship of four of the greatest pagan deities (including Zeus and Athena) and had three other temples dedicated to the worship of Caesar. It was in this context that the church remained faithful in the face of persecution, but was corrupted from within by false teachers, idolatry and sexual immorality. God called them, and is calling us, to repent of sinful actions, attitudes and intentions of the heart.