The Laodicean Church was an Christian community established in the ancient city of Laodicea which was in the Roman province of Asia. The church was established in the first century. It is best known for being one of the Seven churches of Asia mentioned by name in the Book of Revelation (Rev. 3: 14-22).
The Council of Laodicea, held about 360 A.D., forbade the ecclesiastical use of all uninspired or ‘private hymns'.
Well known Bible passage relating to the Laodicean Church
"I know thy works, that thou art neither cold nor hot: I would thou wert cold or hot. So then because thou art lukewarm, and neither cold nor hot, I will spue thee out of my mouth. You say, ‘I am rich; I have acquired wealth and do not need a thing.’ But you do not realize that you are wretched, pitiful, poor, blind and naked. I counsel you to buy from me gold refined in the fire, so you can become rich; and white clothes to wear, so you can cover your shameful nakedness; and salve to put on your eyes, so you can see.
Those whom I love I rebuke and discipline. So be earnest and repent." - Revelation 3:15–16 (KJV)