Hierapolis lay in the valley of the Lycus River, in the region of Phrygia, in Roman Asia Minor, in modern day Turkey. It was a neighboring city of Laodicea and Colossae, forming with them a cluster of nearby churches, located on the main road connecting Iconium to Ephesus.
The city was famous in antiquity for its hot springs and its white limestone terraces formed by mineral rich water, a natural spectacle that drew visitors from across the region. There was also a temple dedicated to Apollo and a grotto tied to pagan rituals, which made Hierapolis an important religious center of local paganism.
The Bible mentions Hierapolis only once, in Paul’s letter to the Colossians. Epaphras, a member of the church of Colossae, is described as someone who worked hard and prayed earnestly for the Christians of Colossae, Laodicea, and Hierapolis.
This brief mention shows that the gospel had already reached Hierapolis through the work of Epaphras, and that his pastoral concern was not limited to a single city, but reached the whole Lycus Valley region.
