Revelation 3:15–18 (ESV)

“ ‘I know your works: you are neither cold nor hot. Would that you were either cold or hot! So, because you are lukewarm, and neither hot nor cold, I will spit you out of my mouth. For you say, I am rich, I have prospered, and I need nothing, not realizing that you are wretched, pitiable, poor, blind, and naked. I counsel you to buy from me gold refined by fire, so that you may be rich, and white garments so that you may clothe yourself and the shame of your nakedness may not be seen, and salve to anoint your eyes, so that you may see." 

While the heart bears many evil deeds, complacency should certainly be considered a top-tier attribute in the parade of sinful behavior.

Complacency creates a lukewarm faith as Jesus noted above. Their spiritual apathy mirrored the tepid water of their city. The church in Laodicea had become lukewarm and thus distasteful and repugnant. The believers didn’t stand for anything; indifference had led them to idleness. By neglecting to do anything for Christ, the church had become hardened and self-satisfied, and it was destroying itself.

Complacency is also evidence of spiritual laziness. In Joel 1:5-6, the people’s physical and moral senses were dulled, making them oblivious to sin. Joel called them to awaken from their complacency and confess their sins before it was too late. How easy it should be for us to see us Christians here today in this verse, especially in America. Despite the chaos around the world, Christianity still enjoys a relative peaceful existence in the States, a condition that has lulled us to sleep to the need for God. We have allowed material abundance to hinder our spiritual readiness.

Thus, our spiritual lives are built on a false sense of security. In Isaiah 32, the prophet warns Israel of the dangers of turning their backs on God and concentrating on their own pleasures while the enemy is drawing near. Our materialistic pursuits bring us such false security, lulling us into thinking all is well when disaster is right around the corner. We turn to the things of this world to seek fulfillment and push aside God’s purpose for our lives and in doing so, border on idolatry.

We have become like the church members of Laodicea. We care enough to ensure the church still functions through our weekly attendance and are quick to praise the work of others, yet the thought of being inconvenienced to seek new converts or to follow through on church discipline just seems like too much effort. We are not, as Chuck Lawless has often said, a church that "Hell knows by name".

We all have a part to play in destroying complacency. And it begins by looking in the mirror.

"Many a church has fallen into a condition of indifference, and when it does so it generally becomes the haunt of worldly professors, a refuge for people who want an easy religion, which enables them to enjoy the pleasures of sin and the honours of piety at the same time; where things are free and easy, where you are not expected to do much, or give much, or pray much, or to be very religious; where the minister is not so precise as the old school divines, a more liberal people, of broad views, free-thinking and free-acting, where there is full tolerance for sin, and no demand for vital godliness." ~C.H. Spurgeon