Why must one be a Christian?
The biblical and rational case for why Christianity is not one option among many — what is actually at stake, and why exclusivity is a claim about truth rather than an attitude of arrogance.
Apologist to the sceptical city
Keller planted Redeemer Presbyterian Church in Manhattan in 1989, in one of the least religious environments in America, and it grew to some five thousand attenders — largely young, educated professionals who had assumed Christianity was intellectually finished.
His method, worked out over decades of fielding objections from that audience, is to take the sceptic's position more seriously than the sceptic does: to grant its strongest form, then show the beliefs it must smuggle in to work at all. The Reason for God devotes its first half entirely to objections before making any positive case.
Walking with God through Pain and Suffering was written before his own pancreatic cancer diagnosis in 2020. His writing and interviews in the years that followed are among the most valuable material available on facing death as a Christian, because they were not theoretical.
The biblical and rational case for why Christianity is not one option among many — what is actually at stake, and why exclusivity is a claim about truth rather than an attitude of arrogance.
Why the Bible treats sin as a condition rather than a scorecard, what it actually costs, and why the gospel is unintelligible until you have grasped it.
A practical and biblical account of prayer: the pattern Jesus taught, why unanswered prayer is not a system failure, and how to build a habit that survives dry seasons.
Why growth is slow, what God does and what you do, why willpower fails, and how to keep going through the long ordinary middle of the Christian life.
Genesis says every human being bears the image of God. What that phrase means, why it gives every person a dignity no tribe, government or disability can remove, and how Christ restores what sin has damaged.
Short, usable answers to the objections that come up most often in real conversations — and the principles for handling one you have never heard before.
Why the people closest to you are the hardest to reach, what usually goes wrong, and the long patient approach that actually works.
The Four Noble Truths, the absence of a creator God, why suffering is diagnosed as attachment, and where the gospel offers what Buddhism does not.
The largest and fastest-growing group in the West: people who are not hostile to faith, merely indifferent — and why arguments rarely reach them.
The four-question worldview test, why "all religions lead to God" is logically incoherent, and how to hold an exclusive claim without arrogance.
The biblical mandate for defending the faith, the different approaches Christians take, and the honest limits of argument in bringing anyone to Christ.
A serious biblical and philosophical answer to the most emotionally powerful objection to Christianity — and how to tell when the question is not really a question.
What Scripture actually says about hell, the three views serious Christians hold, and why the doctrine is not what most people picture.
Why doubt is not the opposite of faith, the different kinds and what each requires, and a practical path through a season when you are not sure you believe.