One of the things that separate the church from all other organizations is that it is to be the pillar and support of the truth (1 Tim. 3:15). The congregation not functioning as the support and dispenser of truth falls short of the biblical criteria for a local church; therefore the assembly which does not major on truth does not fit the definition of a New Testament church. Its attendance may be “mega,” its programs prolific, its enthusiasm contagious, and its motives honorable, but if it is not the pillar and support of truth it fails in its job description as a church. Call it a club, a social gathering, a political awareness group, a socially concerned assembly, or an entertainment center, but don’t call it a church.
Gary Gilley, Think on These Things, November 2008
There are many mega-churches today which fit that description, and even many which aren’t “mega” yet, but are aspiring to be so. How about your church: is it a pillar of truth?