Sometimes I look at my life and it seems like I should still be my younger self. Have you ever felt that way? A few days ago, it hit me that the 1980s — a time in my life where I moved from childhood into my teenage years — began four decades ago. Four decades! Where has the time gone?

And when I look at all that has changed in that time, one of the biggest things I notice is the generational differences that stand out. I am right in the middle of the Gen X generation. My kids are in what many call Gen Z. In between the two are the Millennials. And frankly, there are some pretty big differences between all three of those groups, and even more when you add in the Boomer generation that was before me.

Now throw all of that mix into the church. How do you accomplish the mission we were called to when so many different groups of people see life so differently? That’s the focus of Faith For Exiles, by David Kinnaman and Mark Matlock. This book takes a look at how we can continue to help people follow Jesus from generation to generation.

The premise of the book is pretty simple: In my generation, and even more so in the generation of my parents, church was a pretty significant force in most parts of our culture. But that has changed. More and more, these younger generations seem to be more aptly described as exiles.

The concept of exile is a common theme throughout the Bible. The nation of Israel found themselves in exile in Egypt, and then later in Assyria and in Babylon. They had to learn to live in a foreign land, learn to maintain their faith in a foreign culture, and learn how to manage to pass that on to the next generations, who were more deeply rooted in foreign thinking. As Christians, Peter calls us exiles as well.

Today could be compared to a digital Babylon, and Millennials and Gen Z’ers live right in the middle of it. To continue to do church like we’ve always done it is increasingly ineffective, and unless we find new ways to engage discipleship in younger generations, we may see many of those people walking away from Jesus.

So how do we help the church adjust to such new thinking… exile thinking? How do we help new generations of believers grasp a hold of Jesus and follow him? How do we help these newer generations thrive in their faith and discipleship?

Based on more than fifteen years of research by the Barna Group, Faith For Exiles is revealing and timely. We would do well to pay attention to what is ahead for the church, and watch how Jesus continues to sustain and grow his church, even though it my be completely different from anything we’ve ever experienced.

Faith For Exiles may be the most important book you read this year. But don’t just read it, look for ways to engage with it, and with people of a generation different than yours, and watch how you grow together as disciples. Pick up a copy on Amazon and read it. You’ll be challenged, to be sure. But you’ll be encouraged too.