Revelation 3:14-17
In the letter to Laodicea church, vv.15-16, Jesus said that He knew their works; they had become lukewarm – neither cold nor hot – in their service to Him. The Greek word for lukewarm means to vomit. According to Vine’s Expository Dictionary of Old & New Testament Words, “lukewarm is used metaphorically here in verse 16, of the state of the Laodicean church, which afforded no refreshment to the Lord, such as is ministered naturally by either cold or hot water.” Lukewarm Christians do not please Him; they give Him no glory. Since they are not cold, they do not refresh those who are spiritually weary. They are not hot so they cannot provide healing for the spiritually sick. Therefore, Jesus greatly rejects their lukewarm -spiritually useless – state. It disgusts Him. It makes Him sick, and His prophetic word is that He will spue them out of His mouth.
The Laodiceans were confused, as we often are today, about their status as Christians in this fallen world. In v.17a Jesus reminded them that they said they are rich, increased with goods, and have need of nothing. How arrogant an attitude for a Christian to have! We cannot allow earthly possessions to capture our affection. Colossians 3:2 says that we are to set our affection on things above. However, it’s not having the possessions. Matthew 6:21 says that where your treasure is, there will your heart be also. Jesus declared in v.17b in reference to 17a that the Laodicea church is rich, and they do not know that they are wretched, miserable, poor, blind, and naked (v.17).
Remember, a lukewarm Christian does not glorify God.