We live in a time of a seismic upheaval that is transforming the moral landscape of our culture. To take one example of the changes that are occurring at unprecedented speed, the familiar landmarks that enabled us to know how to think about sexuality have largely been demolished. If our forefathers were to take a look around our culture, it would appear more like a lunar landscape than the world they once knew.

So where are the "ancient paths" in the midst of the rubble of the upheaval? How can we help young Christians find them? And how can we defend and proclaim God 's truth in a culture that has largely lost any connection with what was once so familiar?

In a helpful article, Al Mohler explores how the church must respond to the crisis that the rampant sexual revolution presents. He makes the point that our response must be radically different to the one that we thought worked before cultural earthquake moved the goal posts. He writes:

Why the Concordance Method Fails
Proof-texting is the first reflex of conservative Protestants seeking a strategy of theological retrieval and restatement. This hermeneutical reflex comes naturally to evangelical Christians because we believe the Bible to be the inerrant and infallible word of God. We understand that, as B.B. Warfield said, “When Scripture speaks, God speaks.” I should make clear that this reflex is not entirely wrong, but it’s not entirely right either. It’s not entirely wrong because certain Scriptures (that is, “proof texts”) speak to specific issues in a direct and identifiable way.

There are, however, obvious limitations to this type of theological method—what I like to call the “concordance reflex.” What happens when you are wrestling with a theological issue for which no corresponding word appears in the concordance? Many of the most important theological issues cannot be reduced to merely finding relevant words and their corresponding verses in a concordance. Try looking up “transgender” in your concordance. How about “lesbian”? Or “in vitro fertilization”? They’re certainly not in the back of my Bible.
It’s not that Scripture is insufficient. The problem is not a failure of Scripture but a failure of our approach to Scripture. The concordance approach to theology produces a flat Bible without context, covenant, or master-narrative—three hermeneutical foundations that are essential to understand Scripture rightly.
Needed:  A Biblical Theology of the Body
Biblical theology is absolutely indispensable for the church to craft an appropriate response to the current sexual crisis. The church must learn to read Scripture according to its context, embedded in its master-narrative, and progressively revealed along covenantal lines. We must learn to interpret each theological issue through Scripture’s metanarrative of creation, fall, redemption, and new creation. Specifically, evangelicals need a theology of the body that is anchored in the Bible’s own unfolding drama of redemption. Read more...

Mohler is right. We need a theology rather than concordance in order to be able to navigate the unstable terrain of the new moral landscape.