Dictionary

Hierapolis

Easton's Dictionary

Sacred city, a city of Phrygia, where was a Christian church under the care of Epaphras (Col. 4:12, 13). This church was founded at the same time as that of Colosse. It now bears the name of Pambuk-Kalek, i.e., “Cotton Castle”, from the white appearance of the cliffs at the base of which the ruins are found.

Smith's Dictionary

(holy city), a city of Phrygia, situated above the junction of the rivers Lycus and Maeander, near Colossae and Laodicea mentioned only in (Colossians 4:13) as the seat of a church probably founded by Epaphras.