The waters of the Lycus were said to be good for dyeing the wool that was produced in the region. Ruins of the water distribution system at Laodicea. By the time the water reached Laodicea it was lukewarm. In the letters to the churches in Revelation 2 -3 there are allusions to conditions in the cities. Cold drinks are pleasant to the taste.
Hot drinks are pleasant to the taste.
But lukewarm drinks are distasteful. The Lord was going to spit out this distasteful church. Sandy Hayes enjoys a moment of rest by leaning on a piece of sculpture at Aphrodisias. Dilek blows the whistle. We would expect nothing else from a good arborist.