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. Revelation 3:15, 16.
The condition of many of those who claim to be the children of God is exactly represented by the message to the Laodicean church. There is opened before those who serve God, truths of inestimable value, which, brought into the practical life, show the difference between those who serve God and those who serve Him not….
The Bible is the storehouse of the unsearchable riches of God. But those who have a knowledge of the truth do not understand it as fully as they might. They do not bring the love of Christ into the heart and life. The student of the Word finds himself bending over a fountain of living water. The church needs to drink deeply of the spirituality of the Word. Their service to God needs to be very different from the tame, lifeless, emotionless religious experience that makes many believers but little different from those who believe not.12SDA Bible Commentary 7:963, 964.
Halfhearted Christians are worse than infidels; for their deceptive words and noncommittal position lead many astray. The infidel shows his colors. The lukewarm Christian deceives both parties. He is neither a good worldling nor a good Christian. Satan uses him to do a work that no one else can do.13SDA Bible Commentary 7:963.
Love of self excludes the love of Christ. Those who live for self are ranged under the head of the Laodicean church who are lukewarm, neither cold nor hot. The ardor of the first love has lapsed into a selfish egotism. The love of Christ in the heart is expressed in the actions. If love for Christ is dull, the love for those for whom Christ has died will degenerate. There may be a wonderful appearance for zeal and ceremonies, but this is the substance of their self-inflated religion. Christ represents them as nauseating to His taste.14SDA Bible Commentary 7:962.