I won't make the claim that all big, big churches are bad but what percentage would you say that are bad? Pretty high if we're comparing them to churches that are biblically rooted. In my opinion the postmodern mindset of many big, big church leaders is that church growth is more important that staying biblically sound. The message have been softened not to offend, quotes from the bible lessened to keep people awake and more giant screen TV previews of contemporary movies for the newbies to relate to. And really all they are saying with these actions is the Word of God is not good enough for people today so we have to jazz it up, add to it. The farther we move from the Word of God and dumb down the message the more we embrace weak teaching.
Below is a video I found that asks the modern church goer to ponder what we consider church to be today. How did Paul ever manage without giant TV screens and million dollar sound systems?
You may ask why this concerns me? In the last days before Jesus returns people will move away from sound teaching and embrace that which tickles the ear. And when I read the two sections of scripture below, they tend to cause me some concern over what I see happening in the evangelical church world today. I don't know when the end times will begin but I know we are called to watch and be prepared (Mark 13:33). Poor teaching in our churches, no matter what the size, will make the job of the antichrist and his minions that much easier when he herds uneducated Christians into a one world religious system.
1 Timothy 4:1 The Spirit clearly says that in later times some will abandon the faith and follow deceiving spirits and things taught by demons.
2 Timothy 4:2-5
2 Preach the Word; be prepared in season and out of season; correct, rebuke and encourage—with great patience and careful instruction. 3 For the time will come when men will not put up with sound doctrine. Instead, to suit their own desires, they will gather around them a great number of teachers to say what their itching ears want to hear. 4 They will turn their ears away from the truth and turn aside to myths. 5 But you, keep your head in all situations, endure hardship, do the work of an evangelist, discharge all the duties of your ministry.
Mark 13:33 "Be on guard! Be alert! You do not know when that time will come."