Culture. As Christians we're encouraged to engage it, create it, redeem it. And today many of us are actively cultivating an appreciation for aspects of culture previously stigmatized within the church. Things like alcohol, R-rated movies, and secular music have moved from being forbidden to being celebrated. But are we opening our arms too wide in uncritical embrace of culture? Can there be a healthy, balanced approach--or is that simply wishful thinking?

In my first book, Hipster Christianity, I attempted to explore the relationship between Christianity and popular culture by examining the phenomenon of “cool Christianity” and how the realities of trendiness and the notion of “cultural relevance” have been interpreted and enacted by contemporary evangelicals. Among the several motivations for writing that book was a perception I had that many of my contemporaries (Millennial Christians) had mistook relevance for rebellion/edginess and had replaced a pursuit of holiness with a pursuit of “authenticity.” While it is true that in many cases the hyper-legalistic, Christ-against-culture approach of our parents was off the mark and needed to be moved away from, my concern was that the pendulum had swung (as it so often does) too far in the other extreme, replacing conservative legalism with a distorted form of “liberty” that essentially becomes legalism in the opposite direction.

Gray Matters: Navigating the Space Between Legalism and Liberty (Baker Books) is my attempt to address this “pendulum” problem head on and present an approach to cultural engagement that thoughtfully resides in the vast, glorious terrain between the extremes to which we are so prone to default. Christians have a hard time with nuance. Gray areas are not our strong suit. It’s way easier to just say “yes” or “no” to things, rather than “well, maybe, depending…” But there are many areas where it’s not that black and white. God gives us minds with the capacity for critical thinking so that we might navigate the complexity of these less- straightforward areas of existence.

Popular culture, and what we consume or abstain from within culture, is one such gray area. There aren’t easy answers in the Bible about whether this or that HBO show is OK to watch. Scripture contains no comprehensive list of acceptable films, books, or websites. Contrary to what some Christians maintain, the Bible neither endorses nor forbids all sorts of things it could have been clearer about.

But scriptural silence about the particularities of 21st century media habits is no reason to just throw up one’s hands and indulge in an “anything goes” free-for-all. Rather, it’s an invitation to think about the gray areas more deeply, to wrestle with them based on what Scripture does say and what we’ve come to know about the calling of Christians in this world. The gray areas matter.

I wrote Gray Matters to give Christians tools to better wrestle with a few of the gray areas that have sometimes proven divisive for evangelicals. More broadly, I hope it helps us to take more seriously our habits of cultural consumption–considering how they enrich, corrode or conflict with our Christian identity. Even if we aren’t tempted to be legalists or libertines, many of us are simply apathetic about the things we consume and the manner in which we consume them. Some of us are downright gnostic in the way that we divorce our media/entertainment habits from the faith we purportedly practice.

Perhaps it goes without saying, but I believe that following Christ and appreciating the goodness, truth and beauty of culture are not mutually exclusive endeavors. Reasonable integration, rather than convenient compartmentalization, should define our engagements with culture as Christians. We must go about it thoughtfully, with moderation, and in community. We must do it well because the world is watching; a reckless posture toward culture can impair our witness. More importantly, a healthy consumption of culture can bring glory to God.

Brett McCracken is managing editor of Biola Magazine and author of Gray Matters: Navigating the Space Between Legalism & Liberty and Hipster Christianity: When Church & Cool Collide. He has written for the Wall Street Journal, the Washington Post, CNN.com, the Princeton Theological Review, Christianity Today and Relevant. Follow him on his blog or on Twitter.