It seems we work very hard to insulate ourselves from the very world Jesus says we should be focused on. It seems we have created, without malicious design, a Christian bubble—an evangelical subculture—where Christians live surrounded only by other Christians, and as a result, there are few among the lost whom we get to know intimately. Christian experts tell us how to raise our kids, how to handle our finances, what music to buy, what movies to see, and which books to read. The bubble is complete. But God is on a mission outside the bubble.
Ed Stetzer & Philip Nation, Compelled by Love, p.33.