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18 Words: The most important words you will ever know

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If the modern world can be characterised by one thing it is probably the enormous increase in the number of words around - but that increase has also been accompanied by a seemingly corresponding decrease in understanding. It is the irony of the information age that instead of bringing clarity it has raised uninformed opinion to the same level as truth.
The church has also not been faultless. Rather than discuss ideas in order to come to some settled agreement, the church has been characterised as trying to make words mean different things in order to accommodate differences.
But the church should be a beacon of light to the world. The church has the words of eternal life.
J. I. Packer is a master wordsmith. He is also gifted with the ability of showing where truth lies in complicated reasoning. These skills combine to make Words from God a fascinating read - and a life-changing one.
The 18 words are Death, Devil, Election, Faith, Fellowship, Grace, Holiness, Justification, Lord, Mediator, Mortification, Reconciliation, Regeneration, Revelation, Sanctification, Scripture, Sin & World.


Jim Packer is named by Time Magazine as one of the 25 most influential evangelicals alive. He is the Board of Governor’s Professor of Theology at Regent College, Vancouver, BC, Canada.

243 pages, Kindle Edition

First published January 1, 1981

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About the author

J.I. Packer

446 books927 followers
What do J. I. Packer, Billy Graham and Richard John Neuhaus have in common? Each was recently named by TIME magazine as among the 25 most influential evangelicals in America.

Dr. Packer, the Board of Governors’ Professor of Theology at Regent College, was hailed by TIME as “a doctrinal Solomon” among Protestants. “Mediating debates on everything from a particular Bible translation to the acceptability of free-flowing Pentecostal spirituality, Packer helps unify a community [evangelicalism] that could easily fall victim to its internal tensions.”

Knowing God, Dr. Packer’s seminal 1973 work, was lauded as a book which articulated shared beliefs for members of diverse denominations; the TIME profile quotes Michael Cromartie of the Ethics and Public Policy Center in Washington as saying, “conservative Methodists and Presbyterians and Baptists could all look to [Knowing God] and say, ‘This sums it all up for us.’”

In a similar tribute to Dr. Packer almost ten years ago, American theologian Mark Noll wrote in Christianity Today that, “Packer’s ability to address immensely important subjects in crisp, succinct sentences is one of the reasons why, both as an author and speaker, he has played such an important role among American evangelicals for four decades.”

For over 25 years Regent College students have been privileged to study under Dr. Packer’s clear and lucid teaching, and our faculty, staff and students celebrate the international recognition he rightly receives as a leading Christian thinker and teacher.

(https://www.regent-college.edu/facult...)

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Displaying 1 - 26 of 26 reviews
Profile Image for Mike (the Paladin).
3,148 reviews2,164 followers
March 5, 2013
The section on the Trinity alone would give this book a 4 if not a 5 rating (and I here reserve the right to come back and raise the rating to 5 at a later date).

I marked this book as "skimmed". I calls for much deeper reading than I was able to give this library volume so I need to buy a copy of this book and re-read it...then possibly re-re-read it. I must recommend this to Christians who wish to look deeper into what they actually believe.

I would hope here, going on that you would already be fairly well versed in the Bible and have a good understanding of what you believe and WHY you believe it. Go into the book with an open mind, study it, run down the verses. THINK.

Yes there are a few times when the book gets a bit dry, it's almost inevitable in this kind of volume. There will most likely be times you'll disagree to one extent or another (in fact I hope you do at least at first. If the book convinces you to change your mind, of not at least you will think and have thought about what you believe.).

For non-Christians be aware this is a discussion and a somewhat in depth look at some basic Christian doctrines. For a basic look I'd suggest something different to start with (for example Mere Christianity).

For Christians this will I think stir your mental juices and be an uplifting study.

Recommended highly.
Profile Image for Aaron Irlbacher.
102 reviews2 followers
January 8, 2021
We have all heard the proverb “never judge a book by its cover”. Why do we all know the saying? Because we usually find ourselves judging books by their cover. My first reaction to the book before reading it was somewhat dismissive because the thought the cover was ugly and the title was uninteresting. However, Packer gripped me in his introduction, and page after page seemed to get better and better. To my surprise and joy, I was completely wrong about this book at first glance. I’m not sure I have ever misjudged a book so badly in my life. This book was 200 pages of pure gold. I will be highly recommending this book to many friends.
Profile Image for Whitney Smith.
532 reviews3 followers
March 10, 2022
The information is very scripture-based, which is great. The content is so dense that reading is tedious and cumbersome. Reading this book felt like work, unfortunately. Took me 2 years to get through this jargon.
Profile Image for Marguerite Harrell.
243 reviews10 followers
March 15, 2013
Thankful for Kindle Touch for me to read and read wherever I go. I just finish reading 18 Words: The Most Important Words You Will Ever Know by J.I. Packer. It is a great book to have and learning a lot too. I do wish that I do have this book in a book form as well so that I can be marking that up with highlighter and red or colorful pen. When I got this e-book, I thought it would be a small book about 18 Words, but it isn't a small book. J.I. Packer is true to his name. Yes, he is a packer and packer in words to explain the Words in this book.
Profile Image for Ethan McCarter.
210 reviews4 followers
September 24, 2025
An excellent and thorough look at some of the specific words found in the Scripture. This isn't a word study, and Packer makes that clear at the beginning of the work. It is a theological look at what the words are bringing out for the purpose of formulating doctrine. If you want a book showing you the meaning of "propitiation" from a linguistic standpoint then you'd need to look at a dictionary or theological journal. If you're looking for the theology that flows from the Bible's unpacking of a word like "death" or "election" then this is a great place to go. Packer is always an excellent teacher and brings out some magnificent theological points. My one quibble is some of the language in the chapter on the Trinity is a bit confusing which he also makes in Knowing God and a few other works I've seen. They're not heretical but they're quite unclear and could lead you to skewed doctrines of God. I picked this book up to take a Wednesday night Bible study through in order to help my church with their understanding of the theology behind the words of the Bible. It helped greatly with that aim!
Profile Image for Richard Angelus.
180 reviews2 followers
April 20, 2021
I read and savor this book from cover to cover except for the index at the end. My first introduction to the late Dr. Packer (1926 - July 2020) is his classic book Knowing God and later his shorter work Freedom, Authority, Scripture. His books are meaty but packed (Packer by name, packed by nature he said), Bible-saturated and not so hard to comprehend although some of the languages can be a bit difficult to understand (one time I'm struggling with the words justification and sanctification, Packer have helped me very much with these subjects).

To read my review of this book, CLICK HERE: https://legasitv.blogspot.com/2021/01...
Profile Image for RJ Gernant.
310 reviews
June 8, 2025
Read paperback for a book club. This is an excellently written book that serves one purpose imho: To understand and keep specific words defined correctly, and in context, for students of The Word. Not a quick read but a necessary read. It is important to fully understand words spoken in scripture, why they are in scripture, and then use those words correctly in sharing one’s faith. The author did an excellent job presenting each of 18 words in support of and in an order of the others. Strongly recommend. But don’t be surprised if it keeps putting you to sleep. It’s a lot to comprehend!
188 reviews4 followers
March 1, 2020
Focuses on eighteen key theological words crucial to an understanding of the Christian Faith. Some are basic (e.g., “sin”), whole others are more complex (election, regeneration, etc.). An excellent resource for pastors and teachers who desire a more “fleshed out” explanation of terms than would be found in a theological dictionary. Each study is a full lesson in itself. Most challenging was Packer’s chapter on Christian fellowship.
Profile Image for Susanne.
165 reviews4 followers
December 22, 2021
In this book, JI Packer does word studies on 18 important words from the Christian worldview, and he organizes it much like a book on systematic theology. He uses lots of Bible references to encourage more in-depth study. I took my time with this one, reading a couple of pages every morning. There are so many great insights, and I underlined a ton! I’m going to keep this book handy to re-read.
Profile Image for Paul Pompa.
211 reviews1 follower
January 23, 2022
18 Words

I’m a growing fan of JI Packer. His message is clear and applicable. His analysis thorough. His theology very sound. One cannot walk away from one of His books without having a clearer and deeper understanding of God’s Word.
Profile Image for Glenn.
85 reviews
May 9, 2017
He identifies 18 doctrine area that we should understand and know for our daily lives. Simply super.
Profile Image for Andrew.
214 reviews
May 16, 2017
This was such a helpful book and will remain an important resource for me on my shelf.
59 reviews
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January 27, 2021
Another great book by J.I. Packer. I especially liked the chapters about Fellowship, Mortification, Justification, and Death.
Profile Image for Jeanie.
3,088 reviews1 follower
February 4, 2013
Words are powerful. It is by Gods word that rose Lazarus from the dead. It was a word that created nothing into everything we see. It is by the word that we can know our creator. J.I. Packer goes into great detail in the doctrine of these 18 words that are transforming and the life of the Christian. These 18 words will stir your heart to respond to Gods truth or Be indifferent. Election is one that is most misunderstood. We can easily understate or overstate election. It is very sad to me that election is not taught from the pulpit. The chapter on Election is balanced and valuable to the Christian as it will humble and cause an urgency in your walk. Another one that is hardly spoken from the pulpit is the mortification of sin. It is obvious that it is not being taught and taken to heart with the condition of the church. Each chapter gives you the why, the what and the who.
Profile Image for Ellen.
101 reviews
November 13, 2012
Another fabulous book by J.I. Packer. His faithful adherence to Scripture, clarity, wisdom, sympathy, and powerful brevity are pretty much unparalleled, at least among the authors I'm familiar with. In this book, he tackles 18 familiar Biblical words/concepts and carefully dissects their meanings and implications. I gained new light on every single one of them through his exposition. Very highly recommended book.

The 18 words are:
- Revelation
- Scripture
- The Lord
- The World
- Sin
- The Devil
- Grace
- The Mediator
- Reconciliation
- Faith
- Justification
- Regeneration
- Election
- Holiness and Sanctification
- Mortification
- Fellowship
- Death

"Whatever else in the Bible catches your eye, do not let it distract you from Him."
Profile Image for Christopher.
99 reviews1 follower
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December 23, 2013
Great book

Packer provides solid summaries of important Christian doctrines like redemption, death and election. I would highly recommend this book to anyone seeking to know more about doctrines taught in the Bible.
279 reviews5 followers
June 11, 2014
Exceptional

Very insightful and well written. Packer has explained these important concepts thoroughly but incisively. He has chosen concepts that most would agree are very important.
Profile Image for Janine Dell.
5 reviews
August 2, 2014
This book is a very helpful read in understanding many biblical and theological concepts. I especially appreciated the chapters on mortification and death. I learned so much about mortification and encourage everyone to read this along with their Bible!
1,530 reviews8 followers
September 30, 2016
This book could be pretty technical in tracing the meanings of the 18 words J. I. Packer considers to be important. From my view, some of what he writes is heresy. Still, I believe he is a good man, and I will continue to read what he writes. Most of it is very spiritually nourishing.
Profile Image for Gerhard.
211 reviews13 followers
November 5, 2013
Not 'light' reading, you need to CHEW and DIGEST it. A need to read for anyone who have some questions about their faith and any one who doesn't!
Profile Image for Andy.
220 reviews13 followers
January 6, 2014
Not a comprehensive study of Christian doctrine by any stretch of the imagination, but well-suited for beginners of for a Sunday school class.
Profile Image for Matt Crawford.
528 reviews10 followers
March 27, 2016
A nice brief exposition of many of the debated Reformed truths. I especially enjoyed regeneration and election
Displaying 1 - 26 of 26 reviews

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