Revelation  

“The last of Jesus’ seven messages to the churches, he addresses the church
in Laodicea, an extremely wealthy, and self-sufficient city…The charge made
against this church is that they are lukewarm; an accusation that has often
been taken to mean that their zeal for Jesus had mellowed and their faith
was no longer hot passion; it has cooled to lukewarm but is not quite cold
yet. The problem with is interpretation is that it invents the idea that
Jesus prefers a cold heart to one with at least some desire, and that in no
way does this fit the context of Laodicea…Jesus is not contrasting being
“on fire for” him with being “cold toward” him. Instead he is comparing the
Laodicean believers to their water supply. Cold water is a good thing;
good for drinking, and hot water from the heated springs is a good thing;
good for health and relaxation, but the Laodicean Christians are neither
cold nor hot. They are, in fact, absolutely worthless. They are just as
offensive to Christ as their lukewarm water was to those who had to drink
it…”