Have you ever eaten something that turned your stomach? This is exactly how Jesus feels about lukewarm people.
Jesus uses this phrase in Revelation 3 when He says to the church of Laodicea, "I know your works, that you are neither cold nor hot. I could wish you were cold or hot. So then, because you are lukewarm, and neither cold nor hot, I will vomit you out of My mouth" (Revelation 3:15–16 NKJV). Some churches make the Lord weep; others make Him angry. The Laodicean Church made him sick.
What does this mean for us? Keep in mind that these words are for believers today. So the question is, are you spiritually hot, cold, or lukewarm? Don't answer that too quickly, because the lukewarm person is often the last to know.
Why is being lukewarm such an issue? G. Campbell Morgan wrote "There is more hope for the man outside the church in all his coldness than for the man within the church who is near enough its warmth to appreciate it and far enough from its burning heat to be useless to God and man. There is a greater chance for the nonbeliever who has NOT heard the gospel than the man who has become an evangelized nonbeliever."
Let's make sure that we are not lukewarm spiritually.