Landrum has produced a masterful analysis of Christianity’s evolving place in Western culture that is as sobering as it is inspiring. Elegantly mapping out the challenges confronting Christian citizenship while offering practical wisdom for faithful resistance and cultural renewal, this is an essential handbook for believers seeking to navigate our present moment with biblical wisdom, strategic insight, and the hope at the heart of the Gospel. A timely and prophetic work that promises to help shape Christian public leadership for many years to come.

Dr James Orr, Associate Professor of Philosophy of Religion, University of Cambridge

For many years, David Landrum has been on the culture-war front lines fighting for Christianity and for old-fashioned liberties in a world that increasingly hates both. He has seen the future that the enemies of our once-Christian civilization have in mind for us, and it is one of barbarism and chaos. The hour is late: Landrum's urgently important book is the electrifying jolt that Christians of the West need to awaken from our complacent slumber, and take up effective resistance - while there is still time.

Rod Dreher, author: The Benedict Option (2017), Live Not By Lies (2020), Living in Wonder (2024)

Cultural climate change is real. Christians can no longer deny the impact of secularism on their citizenship, or ignore the vast cultural shifts we are seeing. Landrum's wide-ranging analysis provides a vital understanding of the spiritual and ideological drivers for these perilous times. It also suggests wise and compelling ways to respond. Read this book.

Lord Alton of Liverpool, Professor of Citizenship, Liverpool John Moores University

It is tragic that this book had to be written. That it has been written is indicative of the unique integrity, insight, fury and intelligence of its author. With a street-wise lyricism, and in company with some of the greatest most prophetic thinkers of our age, Dr Landrum lays out the problems of our self-destructing civilization with extraordinary, sometimes frightening acuity, and then shows us how to get involved to arrest it. Immensely fluent, packed full of quotable quotes, and sharp one-liners, this God-honouring, forceful and practical book, the fruit of a lifetime of thinking and advocating in the UK parliamentary and global arenas, demands to be read.

Dr Jenny M Taylor. Associate Fellow in Journalism, Kirby Laing Centre for Public Theology

A passionate and thought-provoking call to action to a church half-asleep. Landrum accurately diagnoses the key challenges facing the Western church today and offers a strategic, long-term, and courageous response. Essential reading for any who wish to ‘understand the times, and know what to do’ (1 Chron 12:32).’

Paul Coleman, Executive Director, ADF International

There has been a seismic change in Western culture over the last 30 years, and as that change has accelerated, it has become more antagonistic to the Christian faith. What does it now mean to be a good citizen in a context which is hostile to many Christian values? David Landrum is in a great position to help us think this through. Drawing on his wide experience of engaging with culture and thinking about Christian discipleship and leadership, he offers us an approach that is both deeply rooted in Scripture and deeply rooted in Christian thinking about culture and change. This book offers a vital guide to navigating our way across the stormy seas, confident in the grace and provision of God.

Revd. Dr Ian Paul. Adjunct Professor, Fuller Theological Seminary

1 Chronicles speaks of ‘the men of Issachar who understood the times and knew what Israel should do’ (12:32). I can pay no higher commendation of Seismos than to say it proves that David Landrum is a ‘man of Issachar’. We live in confusing times which are hard to grasp. Even when we do so through the almost prophetic analysis of secular writers such as Jordan Peterson, Ayaan Hirsi Ali, Douglas Murray et al there still remains the problem of what should we do? This is the genius of Dave’s book - as a political practitioner and a committed Christian he not only gets the culture he knows how to apply the Bible to it. Rather than reading the Bible through the lens of the culture, he has learned to read the culture through the lens of the Bible - and as such he is clear sighted, deep and practical. The highest commendation I could make for this book is simply that, as someone who has been engaged in cultural observation and practice for the past four decades, I wish I had written it!

David Robertson, author and broadcaster: TheWeeFlea.com

SEISMOS offers a masterful and incisive analysis of our contemporary spiritual climate, providing readers with the tools to better discern the challenges of our time. David goes beyond merely exposing the dangers of prevailing ideologies to present practical, actionable strategies for how Christians can thoughtfully and faithfully navigate today’s complex cultural landscape. This book stands as a highly accessible discipleship manual, equipping believers to engage with the world as Jesus would—with conviction, wisdom, and grace.

Dr Adeyinka Adewale, Associate Professor of Leadership Ethics and Entrepreneurship at Henley Business School

In Seismos, David Landrum leads us, with piercing clarity, through a dire catalogue of the moral and intellectual damage that this storm is leaving in its wake. While some commentators would stop there, leaving their readers either in despair or resigned apathy, Landrum does not. He has thought deeply and read widely about the predicament of the formerly ‘Christian’ West and today’s Christians who inhabit it. As a Christian who knows his Bible, he knows that the story of humanity ends well and he sees this present moment, for all its worrying trends, through that lens. Seismos is an urgent and timely call for Christians to read the times, to equip themselves intellectually and morally, to speak and act counter-culturally - to actively resist cultural lethargy, even if it means being cast as society’s pariahs.

Through this book, a baton of leadership is being held out to believers in every sphere of life. It is a must-read for all Christians at whatever level of church and society they inhabit, from palace to pew. I, for one, will be giving many copies away to friends and colleagues.

Giles Udy, historian, author: At Dawn They Came: Soviet Terror and Repression 1917-1953 (2024)

We have every reason to be grateful to Dr Landrum for putting his finger on some of the most pressing issues that explain why Christianity is in decline in the West. Many are in denial about such issues and others ignore them precisely because they feel they are helpless in the face of them. Not only does Dr Landrum diagnose the problem but his diagnosis is both practical and ultimately hope-filled. In this way, Seismos is a must-read for those who seek to forge a path of authentic Christian witness in an environment at best ambivalent but more often increasingly antipathetic to religion in general and Christianity in particular.

John Pontifex, Head of Press & Public Affairs, Aid to the Church in Need UK

Western culture has been in upheaval for the last several decades as the previously accepted moral foundations of our society have been steadily abandoned and Christianity has gone from being respected to being ridiculed. Life is not what it used to be. Christians now urgently need to think through what it means to live in a post-Christian culture where being a Christian is not only counter-cultural, but also costly. Fortunately, David Landrum has done that thinking for us. Landrum brings decades of experience in Christian political advocacy to bear, as well as evident personal research and reflection and wide reading around the subject. This book is the ideal combination of theology, politics, and practical ideas. All Christian leaders will find his insights and perspective helpful in navigating a rapidly changing culture and thinking through their own responses to these changes.

Tim Dieppe, Head of Public Policy, Christian Concern. Author of: The Challenge of Islam (2025)