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The mainline is in decline!

Over the years, we’ve told the story that the mainline is in decline due to their liberal theology. Once you lose your core and solid foundation, you are heading to irrelevance and dramatic loss of membership.

On the other side of this is the ascendancy of evangelicals. Evangelicals stick to the gospel and the teaching of God and are conservative in dealing with morals, so they are growing. And by the way, growth in numbers and our prosperity show God’s hand of favor is on us.

But what if the story isn’t true?

What if the real story is something like this? (Ideas from Religion for Realists Samuel Perry)

  • Both the mainline and evangelical have about the same rate of evangelism growth.
  • The difference is not in evangelism but in babies. Evangelicals have more babies (or at least they did) than mainline folks (the mainline became richer earlier and so saw a decrease in birth rates), so they grew significantly.
  • Recently, as evangelicals have become more wealthy, their birth rates have declined and, like the mainline, will shrink because of it.

A second part of the story is that as the mainline became more acclimated to the culture, their children saw different ways of living and pursued those ways. The same is now happening in evangelical circles.

Compare this to the Amish, who have

  • very high birth rates (6+ children in almost every family) and very closed communities.

This level of birth and closed communities that keep the outside out means generations stay in the Amish way. The Amish are growing gangbusters — one person even wrote a tongue-in-cheek article entitled, “Will we all be Amish?”

Deep in the heart of U.S. evangelicalism is the belief that if we did a better job at apologetics, a better job of showing that our way was superior, people would follow Jesus. But this is not how it works.

Consider the decline of religious affiliation and practice in the United States and Western Europe. Is this primarily the result of people abandoning religious “worldviews,” switching from one set of ideas to another? If that were the case, then religious people could take stock of what competing ideas took hold of such populations, and figure out what they could do to make religious faith more appealing intellectually and emotionally. They could get organized, build relationships, take apologetics courses, and develop reputations as loving neighbors and citizens. But in reality, these long-term trends toward secularism are downstream of a variety of structural factors related to economics, politics, and family life.

(Samuel Perry Religion for Realists)

The central challenge before us is not better ideas or better persuasion (although that does work for some, cf. the Podcast “The Surprising Rebirth of Belief in God”), but creating structures that invite people into the faith community and sustain the faith in our children.

What does this look like?

  1. Belonging First: We need wide open doors that invite people to belong before they even imagine believing. Active hospitality must be a mark of our churches.
  2. Showing First: We must take seriously our calling to be a picture, foretaste, and ambassador of shalom. In all we do before the world, people need to see the ways of a different King and a different kingdom.
  3. Culture First: Jamie Smith reminds us of the importance of traditions, embodied practices, shared spaces, etc. We must create a culture that reflects our deeply held beliefs and embodies that culture in what we do.
  4. Critical Thinking First: Rather than saying to our kids, “God said it, that settles it,” we need to help our kids think deeply, act out their faith, and actively question their faith. When they are raised in shalom and encouraged to question the faith, they have a good foundation for whatever comes their way.
  5. Relationships First: Studies show it takes five adult relationships to embed a child into a lifelong commitment to the church.
  6. Jesus and the Gospel First: Jesus calls us to be witnesses in all the world to the reality that he is King and his kingdom (the new creation) began at his resurrection (see the gospel of John). Jesus and the good news of the kingdom must shape all other “firsts.” The challenge is to ensure that our church’s culture has not been co-opted by what makes us comfortable and pleased. Think about it like this:
    • In The Social Sources of Denominationalism, H. Richard Niebuhr argued in 1929 that religious schisms are primarily about social group concerns like nationality, race, and class; theological disagreements are largely just the pretext.

The church continues to face realities that we never imagined. Can we address these realities with a new imagination while leaving behind old paradigms?

Larry Doornbos

Larry Doornbos is an ordained minister who has served Christian Reformed and Reformed congregations for more than 30 years. He is president of Imagine Church. Imagine Church walks with churches to step into their shalom focused future.

18 Comments

  • Harold Gazan says:

    Wise observations. Thank you.

  • Scott VanderStoep says:

    Thank you. I copied this link to a list of essays that I am collecting for a Senior Seminar I am teaching in Spring 2026, tentatively titled, “Science, Denialism, and the Christian Church.” I am sure my students will enjoy reading this, as I did. Blessings.

  • Cornelis Kors says:

    Thank you Larry! A thought provoking article that investigates a challenging matter. It is somewhat remarkable how Niebuhr seems to have identified in 1929 what I believe is, in part, the true reality in 2025.

  • John Hubers says:

    Thoughtfully conceived and articulated. Good to add this to a myriad of other factors, none of which fully explain the phenomenon, but do offer helpful approaches that churches may want to take.

    Sometimes seeing this makes me happy to be retired!

  • RZ says:

    I had to read this twice in order to appreciate it fully. Although I respect the Amish deeply, I wonder if they (and most of us) are more successful at reproducing “churchies” than transformed Christ followers. The way to “belong” is rigidly scripted. You either behave and believe (express compliance) or you do not belong. Consequently, you either own it, fake it, or leave the church. Would God prefer doctrinal compliance or relational commitment? Truth-defending or truth-seeking?

    • I wonder the same…it reminds me somewhat of Charles Taylor’s work where we live in a time when belief is not contested where as in other times it was impossible not to believe because of the way the world (western) was structured. I believe one of the challenges that is before followers of Christ is to tell a better story than is told in culture, but we’ve not done this very well (and our space is limited to tell this story compared to the many other stories being told) — so other stories win.

  • Benjamin Dykstra, Jr. says:

    A real example of accepting people in the church community where they are. My friend Rick was raised in a conservative Jewish family. Studied in Hebrew school. He started attending the UMC we attended because he wanted his kids to have an exposure to religion, his wife was raised Lutheran and the UMC we attended was welcoming. 8 years in, attending a Bible Study where we learned a lot about Judaism while he learned about the Christian faith, he felt Jesus touch him and whisper ‘I am The One’. If he wasn’t accepted by the church where he was he would never have had the opportunity to hear that whisper.

  • Rodger Rice says:

    Thanks, Larry. An excellent list of “firsts” for the church to pursue today. You debunked some old, lingering church “conspiracy theories.” And you’ve placed before us a new set of challenges. I pray that we put them into action. In them I think there is more room for the Spirit to work.

  • Jack Ridl says:

    Really? Critical thinking? I taught at Hope College for 37 years and here’s what I saw critical thinking lead to: “You’re not a Christian.’ I never get it. Calvinists inform me that everything and everyone is imperfect or to use your words, the world is sinful. Well, duh. I left that judge stuff years ago when it led to my trying jump out a psychiatric hospital window. I grew up with the Amish. They left me alone except for bringing fresh eggs each week. Eggs over words words words. The beginning was the word and it’s with god. We do what comes after. There’s much beyond words.

    • Hi Jack,
      I would hope that critical thinking would lead to another place — one of wondering how wide God’s mercy is. If critical thinking narrows our love it seems we’ve become critical. Perhaps we are working in different definitions here, but for me critical thinking questions our assumptions, opens our hearts to others, and makes us less certain of ourselves.

  • Pieter Stok says:

    Hi Larry, do you have any references for point 5? I would love to know more about these studies as it is an area my wife and I are keenly interested in.

  • RZ says:

    Hi Jack,
    I always appreciate your perspectives and the power, not to mention the courageous genuineness, of your story. Like you, I also question total depravity. Ironically, it serves to tolerate sin while being intolerant of tolerance itself. I have no problem accepting a concept of universal ( not necessarily original) sin. History, church history included, substantiates that. But this business of an angry, vindictive God? And a “sin-gene” that Eve and her lord-Adam are responsible for? As I get older, I become increasingly convinced that we overplay the sin card( quite selectively). This transactional, compensatory gospel only serves to reinforce power. Perhaps deep within us, “crouching at our door,” lies the inherent, free-willish possibility of wanting to be God and to judge ourselves and others, to make our own rules. “Did God really say you cannot…?” That might be called total inadequacy or total insufficiency, perhaps total self-deception, but not depravity. Words matter! They can point toward truth but never completely describe it. Thanks for being a critical analyst, my friend!
    RZ
    PS Minus the internal shunning, the Amish do present a constructive counter-narrative to nationalism, violence, greed, and discontent, as you point out, and as Larry calls the church to present.

  • Matt Stob says:

    Thank you for sharing this, Larry. The analysis related to “mainline” and “evangelical” is important for consideration. On the whole, I also appreciate your six points that suggest a way forward. I think the list has good merit. Just to point out what might be obvious, though, it seems that already in point two we run into discussions/debates about what it means to “show” the Kingdom Jesus brought near–e.g., in this Kingdom, is same-sex marriage permissible? or not? And how are we to engage with those who hold different political views? So, I appreciate your list, but I think we’re in a time in which the church is wrestling with what it means to present a “picture” of shalom, and those “internal” conversations obviously take a great deal of time and effort. Perhaps in having them, though, there is an opportunity to present a “picture” of shalom in terms of (a) HOW we have the conversations and (b) what we can all agree to “picture” TOGETHER even if we aren’t all in agreement with decisions (at least in the short-term?). I’ll grant this could be written off as pie-in-the-sky…or it might just be inherent to the life and calling of the church always. Thoughts?

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