Topical Studies for Colossians 4:13:
Bear {Nave's Topical Bible}
Hierapolis {Nave's Topical Bible}
Laodicea {Forerunner Commentary}
Laodicea {Nave's Topical Bible}
Witness {Forerunner Commentary}
Witness {Nave's Topical Bible}
Zeal {Forerunner Commentary}
Zeal {Torrey's Topical Textbook}