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# On Guard: Defending Your Faith with Reason and Precision

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## Description

Christian apologetics scholar William Lane Craig provides a powerful and practical guide for defending the Christian faith. This concise guide is filled with illustrations, sidebars, and memorizable steps to help Christians stand their ground and defend their faith with reason and precision. In his engaging style, Dr. Craig offers ways to equip Christians, including how to: Answer the difficult questions about your faith Overcome times of spiritual doubt Understand not just what you believe, but why you believe Paired with personal stories from Dr. Craig’s own life, this one-stop training manual will guide you in developing a biblical world view and will show you how being “on guard” with the truth has the power to change lives forever.

Review: A new standard for how an introduction to apologetics should be - If you've ever desired philosophers to say things in easy to understand, yet not dumbed down language, then you will be pleased with this book. On Guard seems to take all the great things William Lane Craig says during his debates, podcasts, and interviews, and puts them in one accessible read. For some reason, apologists speak so clearly during their debates, and yet when you buy their book, you get bogged down in technical jargon that keeps you busy either reading the same page 4 times, or rifling your fingers through a copy of Pocket Dictionary of Apologetics & Philosophy of Religion. Before I got this book, I believed it would be one of those books that would be great for using in a young adults (or not so young adults) Sunday School class, or perhaps giving to someone who knows nothing of apologetics. I was pleasantly surprised to discover that that On Guard is not only that, but also much more! On Guard reminds me of a book that would be the result of an individual's gleanings of the best notes of his studies. (Now I don't have to spend the next year writing all my notes down, because WLC has done it for us! ha ha) Ok, so now that I've given my impression of the book, allow me to go into greater detail: On Guard begins with an impressive list of endorsements, ending with the finest by J.P. Moreland, who refers to Craig as, "the finest Christian apologist of the last half century." I wholeheartedly agree, and also place Moreland there too. We move on to an excellent introduction by Lee Strobel. Lee reminds us of the great debate between Craig and Zindler (a debate I actually paid money to buy on cassette from Moody), and then closes with the claim that, "you'll learn the most compelling arguments in favor of Christianity." Chapter 1 opens with a description of what exactly apologetics is, points out that it is biblical by giving references to Jesus (Luke 24:25-27; John 14:11), and Paul (Romans 1:20; 1 Cor. 15:3-8), and more. He continues by giving reasons why apologetics is important, such as: shaping culture, strengthening believers, and winning unbelievers. Craig closes by explaining how to get the most out of his book. Chapter 2 is about "What difference does it make if God exists?" Starting with the absurdities of life without God, Craig discusses how there would be no ultimate meaning without God (illustrated by his excellent story of the astronaut marooned in outer space), no ultimate value, and no ultimate purpose. He moves on to talk about how people are living in denial, and then to the practical impossibility of atheism. Chapter 3 discusses "Why does anything at all exist?" Craig begins with Leibniz's Argument in easy to memorize form. 1. Everything that exists has an explanation of its existence. 2. If the universe has an explanation of its existence, that explanation is God. 3. The universe exists. 4. The universe has an explanation of its existence. 5. Therefore, the explanation of the universe's existence is God. The book goes on to raise objections to the premises, and also sufficiently addresses those objections. Chapter 4 moves into "Why did the universe begin?" Here, Craig takes us to Al-Ghazali's Argument. 1. Whatever begins to exist has a cause. 2. The universe began to exist. 3. Therefore, the universe has a cause. Craig then discusses premise 1, explaining that "something cannot come from nothing," and, "if something can come into being from nothing, then it becomes inexplicable why just anything or everything doesn't come into being from nothing." He ends the discussion of premise one by pointing out that "common experience and scientific evidence confirm the truth of premise 1." WLC moves on to premise two by discussing actual infinites, Hilbert's Hotel, Big Bang, beginning of time, Oscillating Universes etc. (again, I will remind the reader, if you are not familiar with these subjects, he makes these points in understandable language). Chapter 5 asks, "Why is the universe fine-tuned for life?" I find this chapter especially interesting, since it addresses the impossible odds of life existing in this universe, such as, if the nuclear weak force was altered by only one part out of 10 to the 100th, life would not exist. Craig then discusses arguments against fine-tuning, such as "if they were different, different life forms might have evolved," and, "what if there were different laws?" Taking time to body slam Richard Dawkins' objection presented in his best seller, "The God Delusion," Craig tidily shows the errors of Dawkins' conclusion, "Therefore, God almost certainly does not exist," and then moves on to the next chapter. Chapter 6, "Can we be good without God?" Craig gives the moral argument for God's existence, explains the distinction between values and duties, addresses Euthyphro's Dilemma, answers notions such as, "moral values simply exist," "Whatever contributes to human flourishing is good," "we evolved morals," and then gives a clear description of the Genetic Fallacy, followed by a nice example. By now, hopefully you have a decent picture of what this book is like, so I shall forgo summarizing the rest of the chapters, choosing rather to merely list them. Chapter 7, "What about suffering?" Chapter 8, "Who was Jesus?" Chapter 9, "Did Jesus rise from the dead?" Chapter 10, "Is Jesus the only way to God?" I'll close this review with a mention of two additional features I find appealing. One is the regular "Talk About It" boxes that are on many pages. These are great for reviewing with a class, or testing yourself to see what you remember. e.g. "How has this chapter shown that God: Is unembodied Mind? Transcends the universe? Created the universe?" And, "Think of a movie you've seen recently. If you asked the main character, 'Why does your life matter?' what do you think he or she would say?" The second feature is the wide margins on the side of the pages. There is plenty of room for taking notes. Good luck and enjoy On Guard!
Review: A Stunning Manual on how to Defend the Faith - I bought this book on the Kindle and by the end of the week I had devoured it and wanted to reread it as soon as possible. Dr. Craig presents his arguments in a step-by-step process that is easy to follow and well-thought-out. The book not only contains some of Dr. Craig's most convincing arguments for the existence of God and Christian belief, but is also peppered with definitions of new or difficult words, and questions addressed directly to the reader(s) so that they can also think about what he is arguing about. The book has ten chapters and follows this general layout: Chapter 1 deals with the definition of apologetics, and why Dr. Craig thinks that it is essential for all Christians to be trained in it. Chapter 2 explores the question of "Why does it matter?" that God exists. Dr. Craig demonstrates that morality, value, and purpose are all objectively meaningless in a world without God. Chaptes 3-6 contain four (very convincing) arguments for the existence of God, in an easy-to-memorize format. Chapter 7 deals with the common objection that God and evil cannot coexist. (This was a particular favorite of mine). Finally, Chapters 8-10 defend the existence of Jesus, the truth of the Bible (particularly the New Testament), and the belief that Jesus is the only way to God. (And for those who do not like books with a lot of scripture references all over the place, this book contains very few, especially in the first few chapters. Mostly the scripture appears in the later chapters, when Dr. Craig defends the Bible and the existence of Jesus, using scripture and comparing it to historical fact and logic. Most of the book is pure logic and reason, with little Biblical reference). The book also contains interludes during which Dr. Craig describes his personal experiences (becoming a Christian, learning about apologetics, etc.) in a way which is just as good as any of his arguments. Each chapter concludes with an outline or flow chart detailing what that chapter covered in a concise format, further helping the reader sort through all the data covered in each chapter. So, in conclusion, I'd have to say that this is easily an amazing apologetics book. And I won't lie: after reading it the first time I quickly added several other books by Dr. Craig to my wish list. This is definitely worth buying. If you are a Christian then you do not want to miss out on this one!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Best Sellers Rank | #21,682 in Books ( See Top 100 in Books ) #37 in Evangelism #78 in Christian Apologetics (Books) #861 in Christian Spiritual Growth (Books) |
| Customer Reviews | 4.7 out of 5 stars 2,058 Reviews |

## Images

![On Guard: Defending Your Faith with Reason and Precision - Image 1](https://m.media-amazon.com/images/I/51QS-5yShBL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ A new standard for how an introduction to apologetics should be
*by M***N on March 3, 2010*

If you've ever desired philosophers to say things in easy to understand, yet not dumbed down language, then you will be pleased with this book. On Guard seems to take all the great things William Lane Craig says during his debates, podcasts, and interviews, and puts them in one accessible read. For some reason, apologists speak so clearly during their debates, and yet when you buy their book, you get bogged down in technical jargon that keeps you busy either reading the same page 4 times, or rifling your fingers through a copy of Pocket Dictionary of Apologetics & Philosophy of Religion. Before I got this book, I believed it would be one of those books that would be great for using in a young adults (or not so young adults) Sunday School class, or perhaps giving to someone who knows nothing of apologetics. I was pleasantly surprised to discover that that On Guard is not only that, but also much more! On Guard reminds me of a book that would be the result of an individual's gleanings of the best notes of his studies. (Now I don't have to spend the next year writing all my notes down, because WLC has done it for us! ha ha) Ok, so now that I've given my impression of the book, allow me to go into greater detail: On Guard begins with an impressive list of endorsements, ending with the finest by J.P. Moreland, who refers to Craig as, "the finest Christian apologist of the last half century." I wholeheartedly agree, and also place Moreland there too. We move on to an excellent introduction by Lee Strobel. Lee reminds us of the great debate between Craig and Zindler (a debate I actually paid money to buy on cassette from Moody), and then closes with the claim that, "you'll learn the most compelling arguments in favor of Christianity." Chapter 1 opens with a description of what exactly apologetics is, points out that it is biblical by giving references to Jesus (Luke 24:25-27; John 14:11), and Paul (Romans 1:20; 1 Cor. 15:3-8), and more. He continues by giving reasons why apologetics is important, such as: shaping culture, strengthening believers, and winning unbelievers. Craig closes by explaining how to get the most out of his book. Chapter 2 is about "What difference does it make if God exists?" Starting with the absurdities of life without God, Craig discusses how there would be no ultimate meaning without God (illustrated by his excellent story of the astronaut marooned in outer space), no ultimate value, and no ultimate purpose. He moves on to talk about how people are living in denial, and then to the practical impossibility of atheism. Chapter 3 discusses "Why does anything at all exist?" Craig begins with Leibniz's Argument in easy to memorize form. 1. Everything that exists has an explanation of its existence. 2. If the universe has an explanation of its existence, that explanation is God. 3. The universe exists. 4. The universe has an explanation of its existence. 5. Therefore, the explanation of the universe's existence is God. The book goes on to raise objections to the premises, and also sufficiently addresses those objections. Chapter 4 moves into "Why did the universe begin?" Here, Craig takes us to Al-Ghazali's Argument. 1. Whatever begins to exist has a cause. 2. The universe began to exist. 3. Therefore, the universe has a cause. Craig then discusses premise 1, explaining that "something cannot come from nothing," and, "if something can come into being from nothing, then it becomes inexplicable why just anything or everything doesn't come into being from nothing." He ends the discussion of premise one by pointing out that "common experience and scientific evidence confirm the truth of premise 1." WLC moves on to premise two by discussing actual infinites, Hilbert's Hotel, Big Bang, beginning of time, Oscillating Universes etc. (again, I will remind the reader, if you are not familiar with these subjects, he makes these points in understandable language). Chapter 5 asks, "Why is the universe fine-tuned for life?" I find this chapter especially interesting, since it addresses the impossible odds of life existing in this universe, such as, if the nuclear weak force was altered by only one part out of 10 to the 100th, life would not exist. Craig then discusses arguments against fine-tuning, such as "if they were different, different life forms might have evolved," and, "what if there were different laws?" Taking time to body slam Richard Dawkins' objection presented in his best seller, "The God Delusion," Craig tidily shows the errors of Dawkins' conclusion, "Therefore, God almost certainly does not exist," and then moves on to the next chapter. Chapter 6, "Can we be good without God?" Craig gives the moral argument for God's existence, explains the distinction between values and duties, addresses Euthyphro's Dilemma, answers notions such as, "moral values simply exist," "Whatever contributes to human flourishing is good," "we evolved morals," and then gives a clear description of the Genetic Fallacy, followed by a nice example. By now, hopefully you have a decent picture of what this book is like, so I shall forgo summarizing the rest of the chapters, choosing rather to merely list them. Chapter 7, "What about suffering?" Chapter 8, "Who was Jesus?" Chapter 9, "Did Jesus rise from the dead?" Chapter 10, "Is Jesus the only way to God?" I'll close this review with a mention of two additional features I find appealing. One is the regular "Talk About It" boxes that are on many pages. These are great for reviewing with a class, or testing yourself to see what you remember. e.g. "How has this chapter shown that God: Is unembodied Mind? Transcends the universe? Created the universe?" And, "Think of a movie you've seen recently. If you asked the main character, 'Why does your life matter?' what do you think he or she would say?" The second feature is the wide margins on the side of the pages. There is plenty of room for taking notes. Good luck and enjoy On Guard!

### ⭐⭐⭐⭐⭐ A Stunning Manual on how to Defend the Faith
*by J***E on February 19, 2011*

I bought this book on the Kindle and by the end of the week I had devoured it and wanted to reread it as soon as possible. Dr. Craig presents his arguments in a step-by-step process that is easy to follow and well-thought-out. The book not only contains some of Dr. Craig's most convincing arguments for the existence of God and Christian belief, but is also peppered with definitions of new or difficult words, and questions addressed directly to the reader(s) so that they can also think about what he is arguing about. The book has ten chapters and follows this general layout: Chapter 1 deals with the definition of apologetics, and why Dr. Craig thinks that it is essential for all Christians to be trained in it. Chapter 2 explores the question of "Why does it matter?" that God exists. Dr. Craig demonstrates that morality, value, and purpose are all objectively meaningless in a world without God. Chaptes 3-6 contain four (very convincing) arguments for the existence of God, in an easy-to-memorize format. Chapter 7 deals with the common objection that God and evil cannot coexist. (This was a particular favorite of mine). Finally, Chapters 8-10 defend the existence of Jesus, the truth of the Bible (particularly the New Testament), and the belief that Jesus is the only way to God. (And for those who do not like books with a lot of scripture references all over the place, this book contains very few, especially in the first few chapters. Mostly the scripture appears in the later chapters, when Dr. Craig defends the Bible and the existence of Jesus, using scripture and comparing it to historical fact and logic. Most of the book is pure logic and reason, with little Biblical reference). The book also contains interludes during which Dr. Craig describes his personal experiences (becoming a Christian, learning about apologetics, etc.) in a way which is just as good as any of his arguments. Each chapter concludes with an outline or flow chart detailing what that chapter covered in a concise format, further helping the reader sort through all the data covered in each chapter. So, in conclusion, I'd have to say that this is easily an amazing apologetics book. And I won't lie: after reading it the first time I quickly added several other books by Dr. Craig to my wish list. This is definitely worth buying. If you are a Christian then you do not want to miss out on this one!

### ⭐⭐⭐⭐⭐ Not to be read but studied at least twice.
*by T***O on April 10, 2015*

As far as I can tell, Craig gives an even handed evaluation for many historical and philosophical questions related to god in general and the Judeo-Christian God in particular. All the issues seem to be dealt with "reason and precision", with opposing views presented. At the end of each chapter there is a summary and a map of the different points and counter-points. Never the less, the book doesn't have an arrogant feel, as Craig presents the opposing views in "as far as I can tell"-way. This is shown in phrases such as "current research", "modern scholarship" and "I have never heard", leaving a possibility that there might be something missing or in the future some new idea might come up. Even so we should make our decisions based on the best current knowledge and not in some unknown future argument, and that makes Craigs arguments very compelling. Almost all issues could be dealt with more deeply, but as Craig himself notes a couple of times, space would not allow it. Apparently the book was not meant to require it's own wheelbarrow for transport, and so it doesn't. For someone completely new to philosophy the book may be a bit hard to read as precision requires precise terms of art. This problem is greatly mitigated by the book itself by presenting rarely used terms when they come up for the first time. Different philosophical tools are also presented and explained as they are used. The book is mind-twisting in a good way. As he mentions in the book, it is not meant to be read but studied, and this is evident by frequent "Talk about it"-sections presenting study questions. Thus the book is well suited for a small group study. I'll have to re-read it after a while. Maybe when I find a group to study it with. All-in-all the book is excellent for Christian (would be) apologists as a shortish handbook for different arguments. It is also great for Christians not specializing in apologetics, because it will give them answers to challenges they might face. Even for a non-Christian who is interested in philosophy the book is worth a read as it touches many philosophical issues. For someone opposing Christianity the book is great because it presents some of the most usual attacks against non-Christian arguments and defenses for Christian or theistic arguments, thus in a way giving a non-Christian "the opponent's playbook".

## Frequently Bought Together

- On Guard: Defending Your Faith With Reason and Precision
- Tactics, 10th Anniversary Edition: A Game Plan for Discussing Your Christian Convictions

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