Knowing God by J.I. Packer — A Book Summary

The Question That Changes Everything

There is one question that, if you take it seriously enough, rearranges everything else in your life. Not “What should I do with my career?” or “How do I find happiness?” or even “Does God exist?” The question is simpler, older, and infinitely more demanding than any of those: Do I actually know God — or do I merely know about Him?

J.I. Packer opens Knowing God with the kind of directness that feels almost like a rebuke to the comfortable, distracted Christianity of every era it has encountered. First published in 1973 and drawn from a series of articles in The Evangelical Magazine, it has since sold millions of copies, shaped generations of pastors and theologians, and earned the rare distinction of being called a modern classic while the author was still alive. It belongs on the same shelf as Mere Christianity and The Cost of Discipleship — books that do not merely inform you about the faith, but quietly demand that you decide what you intend to do with it.

Packer articulates the book’s core aspiration with a question that deserves to be read slowly: “What makes life worthwhile is having a big enough objective, something which catches our imagination and lays hold of our allegiance — and for what higher, more exalted, and more compelling goal can there be than to know God?” Everything that follows in the book is an attempt to help the reader pursue that goal with intelligence, reverence, and genuine hunger.

The Central Argument

The thesis of Knowing God is deceptively simple and permanently unsettling: most Christians live far below their spiritual inheritance because they have settled for information about God when they were offered a relationship with Him.

Packer frames it in a series of questions that build on one another like hammer blows: “What were we made for? To know God. What aim should we have in life? To know God. What is the eternal life that Jesus gives? To know God. What is the best thing in life? To know God. What in humans gives God most pleasure? Knowledge of himself.”

This is not mysticism. Packer is not urging an emotional experience or a feeling of spiritual warmth. He is arguing — with the precision of an Oxford-trained theologian and the pastoral heart of a man who has watched people live and die — that genuine knowledge of God is the most transformative, most stabilizing, most joy-producing reality available to a human being. And that most of us have barely scratched its surface.

He draws the crucial distinction plainly: “There’s a difference between knowing God and knowing about God. When you truly know God, you have energy to serve Him, boldness to share Him, and contentment in Him.”

Structure of the Book

Knowing God is organized into three parts that build logically and pastorally on one another.

Part One: Know the Lord. Packer begins not with God’s attributes but with the posture of the person who approaches God. He examines what it means to study God seriously, why so many Christians settle for shallow theology, and what the stakes truly are. His warning here is direct and haunting: “Disregard the study of God, and you sentence yourself to stumble and blunder through life blindfolded, as it were, with no sense of direction.” This opening section is a call to take the intellectual life of faith as seriously as the devotional one — and to understand that the two cannot, in the end, be separated.

Part Two: Behold Your God. The heart of the book. Packer works through the great attributes of God — His majesty, wisdom, word, truthfulness, love, grace, wrath, goodness, jealousy, and more — examining each one with careful biblical exegesis and practical application. This is not abstract theology. Every chapter asks: what does this attribute of God mean for how I live, how I pray, how I suffer, and how I hope?

Part Three: If God Be For Us. The final section draws out the implications of the first two. If God is who He says He is, and if He truly knows us and loves us in Christ, then what follows? Packer explores adoption, guidance, peace, and the Christian’s final destiny — not as theoretical propositions but as living realities that ought to reshape everyday experience.

Chapter Themes That Linger

On the Majesty of God. One of the book’s most arresting early arguments is that modern Christianity has developed a dangerously shrunken view of God. Packer writes with a kind of sorrow: “Christian minds have been conformed to the modern spirit: the spirit, that is, that spawns great thoughts of man and leaves room for only small thoughts of God.” The remedy is not a pep talk about thinking more positively — it is a sustained encounter with the God of Scripture, whose greatness, sovereignty, and holiness make every human achievement look like what it is.

On God’s Wisdom. Packer’s treatment of divine wisdom is one of the most practically comforting sections in the book. The result of receiving this wisdom is beautifully described: “The effect of his gift of wisdom is to make us more humble, more joyful, more godly, more quick-sighted as to his will, more resolute in the doing of it and less troubled — not less sensitive, but less bewildered — than we were at the dark and painful things of which our life in this fallen world is full.”

On the Love and Grace of God. Perhaps no passage in the book has been more widely quoted than Packer’s meditation on grace: “In the New Testament, grace means God’s love in action toward people who merited the opposite of love. Grace means God moving heaven and earth to save sinners who could not lift a finger to save themselves. Grace means God sending his only Son to the cross to descend into hell so that we guilty ones might be reconciled to God and received into heaven.”

On the Wrath of God. Packer does not flinch from one of the most uncomfortable doctrines in Scripture. His definition is precise: “God’s wrath is his righteousness reacting against unrighteousness.” The chapter on divine wrath is one of the most important in the book precisely because it is the one most readers would rather skip.

On Adoption. Many readers consider Packer’s chapter on adoption the crown jewel of Knowing God. He writes with unmistakable conviction: “You sum up the whole of New Testament religion if you describe it as the knowledge of God as one’s holy Father. If you want to judge how well a person understands Christianity, find out how much he makes of the thought of being God’s child, and having God as his Father. If this is not the thought that prompts and controls his worship and prayers and his whole outlook on life, it means that he does not understand Christianity very well at all.”

On Being Known by God. In what may be the single most moving passage of the book, Packer turns the entire premise on its head. The most important thing, he argues, is not that you know God — it is that God knows you: “What matters supremely, therefore, is not, in the last analysis, the fact that I know God, but the larger fact which underlies it — the fact that He knows me. I am graven on the palms of His hands. I am never out of His mind. All my knowledge of Him depends on His sustained initiative in knowing me. I know Him, because He first knew me, and continues to know me. He knows me as a friend, One who loves me; and there is no moment when His eye is off me, or His attention distracted from me, and no moment, therefore, when His care falters.”

On Guidance. Packer’s treatment of divine guidance is a bracing corrective to the anxiety-ridden, sign-seeking approach to decision-making that characterizes so much of popular Christianity: “Guidance, like all God’s acts of blessing under the covenant of grace, is a sovereign act. Not merely does God will to guide us in the sense of showing us his way, that we may tread it; he wills also to guide us in the more fundamental sense of ensuring that, whatever happens, whatever mistakes we may make, we shall come safe home. Slippings and strayings there will be, no doubt, but the everlasting arms are beneath us; we shall be caught, rescued, restored.”

Notable Concepts

Knowledge Requires Relationship. Packer insists from the first chapter that genuine theological knowledge is not merely cognitive but relational and transformative. His practical counsel on how to move from the one to the other is precise: “How can we turn our knowledge about God into knowledge of God? The rule for doing this is simple but demanding. It is that we turn each truth that we learn about God into matter for meditation before God, leading to prayer and praise to God.”

Meditation as Communion. Packer defines Christian meditation as “the activity of calling to mind, and thinking over, and dwelling on, and applying to oneself, the various things that one knows about the works and ways and purposes and promises of God. It is an activity of holy thought, consciously performed in the presence of God, under the eye of God, by the help of God, as a means of communion with God.”

God’s Unconditional Love. One of the most liberating truths Packer articulates: “There is tremendous relief in knowing that his love to me is utterly realistic, based at every point on prior knowledge of the worst about me, so that no discovery now can disillusion him about me, in the way I am so often disillusioned about myself, and quench his determination to bless me.”

Perseverance and Grace. “Your faith will not fail while God sustains it; you are not strong enough to fall away while God is resolved to hold you.”

The Incarnation as the Center. “The Almighty appeared on earth as a helpless human baby, needing to be fed and changed and taught to talk like any other child. The more you think about it, the more staggering it gets. Nothing in fiction is so fantastic as this truth of the Incarnation.”

Theological Perspective

Packer writes from within Reformed Anglican theology, and his commitment to the sovereignty of God, the authority of Scripture, and the objective work of Christ pervades every chapter. He captures his own theological conviction in a sentence that doubles as a life motto: “To know that nothing happens in God’s world apart from God’s will may frighten the godless, but it stabilizes the saints.”

His vision for the church is genuinely inspiring — not a vision of institutional success or numerical growth, but a community of people so captivated by God that the world cannot look away.

Strengths of the Book

The great strength of Knowing God is the rare combination of theological rigor and spiritual warmth. Packer thinks precisely and feels deeply, and the combination produces writing that both instructs the mind and moves the heart. He never talks down to his reader, and he never mistakes cleverness for truth.

A second strength is its scope. In just over 250 pages, Packer covers the character of God with a breadth and depth that most systematic theologies spread across thousands of pages — and he does it in language that any serious reader can follow.

A third strength is its staying power. The book’s core questions — Who is God? What is He like? What does it mean that He loves me? — are not questions that any era exhausts. Every generation of Christians needs to ask them afresh, and Packer is an extraordinarily good guide for the asking.

Ideal Reader

Knowing God is the essential book for the Christian who has been in the faith long enough to know that something is missing — who has the language of belief without the weight of genuine encounter, the doctrines without the delight. It is equally the right book for the new believer who wants to lay a theological foundation that will hold through a lifetime of joy, suffering, and doubt. And it is an invaluable resource for anyone who wants to understand why theology matters — why what you believe about God shapes, at the most fundamental level, everything else about how you live.

Packer states the stakes plainly near the beginning of the book: “Once you become aware that the main business that you are here for is to know God, most of life’s problems fall into place of their own accord.”

A Final Word

“I am graven on the palms of His hands. I am never out of His mind. All my knowledge of Him depends on His sustained initiative in knowing me.” — J.I. Packer