A Fresh Take on Apologetics for a Modern World of Unbelief
Are you ready to defend your faith with intellectual rigor and biblical clarity? Defending God’s Existence by Ken Ham, offers a groundbreaking approach to apologetics, rooted in the powerful Van Tillian presuppositional method — the gold standard for defending the Christian worldview. Unlike conventional apologetic strategies that often concede human reason as the ultimate authority, this book boldly asserts that the God of the Bible and His Word are the absolute, foundational standard for all truth, logic, and knowledge.
Learn How to Address Modern Skeptics
Many Christians struggle to respond to skeptics who dismiss the Bible. This book reveals why starting with man’s fallen reasoning leads to inherent inconsistencies and ultimately fails to provide a coherent worldview. Instead, you'll learn to employ the Transcendental Argument for the Existence of God (TAG), which demonstrates that logic, morality, science, and even the possibility of knowledge itself are only intelligible because the biblical God exists. You will discover how all other worldviews borrow from the Christian worldview to make sense of the world, whether they realize it or not.
Defending God's Existence will equip you
Understand why traditional apologetic methods often fall short in proving the biblical God.Master the nuclear strength apologetic to expose the arbitrariness, inconsistency, and lack of preconditions for intelligibility in atheistic, naturalistic, and other religious worldviews.Confidently affirm that the Bible is true because any alternative makes knowledge and logic impossible.Use evidence as a powerful confirmation of biblical truth, not as a starting point dependent on human interpretation.Gently and respectfully challenge humanistic thinking by revealing its foundational flaws, always pointing to God and His Word as the ultimate authority.This book emphasizes that while apologetics can dismantle false worldviews and answer skeptical questions, the ultimate goal is to present the gospel with gentleness and respect, recognizing that it is the Holy Spirit who brings about salvation.
Accessible Yet Deep
From God’s attributes and the Trinity to comparing Scripture with other so-called holy books, this 224-page resource makes complex ideas approachable, even for newcomers to apologetics, while offering robust insights for seasoned defenders of the faith.
Prepare to transform your understanding of defending the faith and empower yourself to proclaim the truth of God's existence in a world desperately searching for meaning.
Dr. Ken Ham is the president of Answers in Genesis USA and is a well-known speaker and author on the subject of Young-Earth Creationism. He received a bachelor degree in applied science (emphasis on environmental biology) from the Queensland Institute of Technology, and a Diploma of Education from the University of Queensland. He has also received two honorary doctorates: a Doctor of Divinity from Temple Baptist College, and a Doctor of Literature from Baptist Liberty University.
He was a director of Creation Science Foundation (CSF) in Australia, an organization which he jointly founded with John Mackay. In 1987 he moved to the United States, still maintaining his links with CSF.
From 1987 to 1993, Ham worked for the Institute for Creation Research, and in 1994 set up what in 1995 became Answers in Genesis (AiG), a creation ministry dedicated to "upholding the authority of the Bible from the very first verse."
In 2008 Ham was described by well known atheist and evolutionary biologist PZ Myers as a "Wackaloon" for carrying out a prayer session with members of the Pentagon. Ham responded regarding the validity of that prayer breakfastand that PZ Myers and other critics were intolerant of his position.
THE ‘ANSWERS IN GENESIS’ FOUNDER USES PRESUPPOSITIONAL APOLOGETICS
Editor Ken Ham is a prominent “Young Earth Creationist,” and the president/CEO and founder of Answers in Genesis, which manages the Creation Museum and Ark Encounter.
He wrote in the Foreword to this 2025 book, “If God doesn’t exist… We’re just animals… of no more inherent value than slugs, baboons, or bananas. There is no ultimate purpose or meaning to life and … when you’re dead, you’re dead… That’s a pretty bleak picture and few atheists or skeptics live like it’s true… And the good news… is that atheists are utterly, completely, and foolishly wrong. Their worldview simply doesn’t stand up to scrutiny … The only answer … that makes sense of what we observe is yes, God exists; specifically the God of the Bible exists.” (Pg. 5)
He explains, “Why don’t I use the classical arguments for the existence of God?… largely because you can only take them so far… Back in the 1980s there was an American atheist activist… Gordon Stein who was ‘wreaking havoc’ on Christians… He would debate Christians and often leave them looking very foolish. That was until 1985 when he debated a Christian philosopher … Dr. Greg Bahnsen… [Bahnsen] used the TRANSCENDENTAL argument in the famous ‘Great Debate’… Dr. Stein was stopped dead in his tracks as Bahnsen forced him to account for the inconsistencies of his own atheistic worldview and … his argument was left in ashes and he looked foolish… As a result, his fame… was washed away… After this debate, Greg Bahnsen informally earned the title, ‘The Man Most Feared by Atheists.’ (Pg. 8)
He states, “There are so many beliefs, worldviews, and opinions out there. How can we tell if something is true or false? Simple: we compare it against the Bible. If it is in disagreement with God and … His Word, then it is wrong. Yes, it’s really that simple. If something contradicts God’s Word, then that argument, worldview, or position is FALSE.’ (Pg. 21)
He asserts, “Logic stems from who God is… some critics claim that the laws of logic are just arbitrary ‘inventions’ made up by the Western world… if [this claim] were true, then rational debate would be possible… No, laws of logic… are rooted in God’s own nature (God cannot contradict Himself, for instance) and, thus, are objective, universal, and unchanging.” (Pg. 40)
He argues, “Van Tillian presuppositional apologetics places God and His Word as the absolute authority in every area… Christianity alone is consistent and provides the only basis for the PRECONDITIONS OF INTELLIGIBILITY… presuppositional apologists … do an internal critique of the unbelievers’ worldview to show where it is arbitrary, inconsistent, and where they lack the preconditions necessary for knowledge within their own worldview.” (Pg. 61)
He rejects ‘Evidential’ apologetics, which “is largely inductive, in its logical format… This falsely assumes that unbelievers can interpret facts ‘correctly’ when presented with them… it’s believed that data and evidence don’t need interpretation… but scientific data … or any other piece of evidence DO require interpretation!… this is why creationists and evolutionists have the same evidence (e.g., rock layers)… but don’t agree on the interpretation… Different worldviews lead to different interpretations about the past.” (Pg. 73)
He reports, “Dr. [Cornelius] Van Til was a Dutch-American philosopher and theologian… who taught at Westminster Theological Seminary… until he died in 1987. His philosophy for the presuppositional apologetic lit a fire that lived on through through apologists like Dr. Greg Bahnsen… John Frame… James White, and even the ministry of Answers in Genesis, the Ark Encounter, and the Creation Museum.” (Pg. 91-92)
He contends, “for someone to object to the Bible, he must BORROW from … the Bible to make his objection! And he’s assuming he … is in a position of authority ABOVE the all-knowing, all-powerful, all-present Creator God!… an apologist … could easily reverse the objector’s same argument right back at him, ‘YOU can’t use any of YOUR arguments, because YOU haven’t been proven true or provided a basis for truth.’” (Pg. 100)
He recounts, “during my debate with Bill Nye … I pointed out a piece of wood encased in a solidified lava flow. The lava flow was dated to 45 million years using potassium-argon dating… however the wood encased in the lava was dated at only 45,000 years old using carbon dating. How could a 45,000-year-old piece of wood be encased in a 45-million-year-old rock? … [Nye claimed] the rock ‘slid on top’ of the wood---ignoring the fact that the wood was encased in the rock.” (Pg. 115)
He reports, “‘Isn’t it circular reasoning to start with the Bible when defending the Bible?’ This is probably the most common objection to the presuppositional apologetic method: the accusation of circular reasoning. Unfortunately, many people don’t realize the intricacies of circular reasoning… circular reasoning is actually VALID in logic and reasoning… critics … erroneously assume that ALL circular reasoning is the arbitrary form…” (Pg. 131-132)
He states, “Those in RELATIVISM criticize the absolute truth of Christianity by arguing that ‘absolute truth doesn’t exist.’ But are they absolutely sure about that? Just ask them why they are professing an ABSOLUTE TRUTH about absolute truth not existing. It’s that simple to refute.” (Pg. 185)
This book surprised me, with its endorsement of presuppositional apologetics (which is normally used by theologians/apologists of the REFORMED/CALVINIST tradition, not Evangelicals). Ham and Answers in Genesis usually use an evidence-based approach in their debates/arguments against evolution. (Bahnsen was also a 'Christian Reconstructionist,' like his mentor Rousas Rushdoony.)
This book is full of information about how to have discussions about God, the Bible and the effect the secular world has on the Christian and the church as a whole. This book is very detailed in its arguments and provides many ways to have discussions/debates without losing God’s word to stand on. It does feel like information overload at some points but it is needed to with the material that is being discussed. I definitely would recommend for anyone who wants to learn more about why it’s important as a Christian to believe in Genesis 1-11 and be able to defend their worldview.
A faith-building read that points out reasons to believe in the Creator. The author explains complex ideas in a simple, understandable way. It expresses how science, logic, and Scripture all point to God’s reality. It encourages readers to stand firm in their faith and gives practical tools for answering common questions about beliefs through apologetics. A great resource for Christians wanting to grow in confidence and understanding.
Excellent Resource for All Christians, Especially for Those Studying Christian Apologetics! “Defending God’s Existence” by Ken Ham couldn’t have been released at a better time for me. I have been working to create a one year long Christian Apologetics course and the Presuppositional apologetic approach was in the lineup of topics to cover. I really appreciate this book for multiple reasons and I highly recommend it.
First, as most Presuppositional apologists do, the Word of God is the foundation for “apologetic” discussions. Ken Ham clearly shows how the Bible must be our starting point when considering various topics. Just as Hebrews 4:12 states, “For the word of God is living and active, sharper than any two-edged sword, piercing to the division of soul and of spirit, of joints and of marrow, and discerning the thoughts and intentions of the heart.”
Second, I appreciate how Ken Ham reminds us that Christian apologists don’t convince people of the truth and certainly do not save people. The Holy Spirit does the drawing of the soul to God through the truth of His Word and He convinces people of where they stand before God. The Holy Spirit does the work in a person. The Christian Apologist’ job is to plant seeds of truth by defending why they believe what they believe. Ken Ham describes that many times the Christian Apologist won’t see a person be born again, but when they do, it’s possible the answers the Christian Apologist gave from the truth of God’s Word were planted or watered in the soul that was saved. Remember God gives the increase!
Third, I appreciate the history of presuppositional apologetics and the comparison to other apologetic approaches (e.g., classical, evidential, etc.). It was helpful to understand the differences between the apologetic approaches. It was also helpful to be given examples of questions one could ask with claims that are made contrary to the truth. The questions are twofold at least: 1) Understand where the person is coming from/genuinely get to know them and 2) Help the person see the error of their way.
Fourth, Ken provided several tables with key information as it relates to formal and informal logical fallacies, comparisons of other religions (e.g., Islam, Buddhism, Latter Day Saints/Mormonism, Jehovah Witnesses, Atheism, etc.) to Christianity, and example conversations on various topics. All of these are great for quick references.
Fifth, I appreciated Ken Ham’s attitude throughout the book. Many Christians don’t see the importance of apologetics and/or they have a negative perception of it. Many times, people have negative perceptions of Christian apologetics because of the person carrying the message, and especially with the Presuppositional approach. Oftentimes the Presuppositional approach comes across as “tear your house down and build it back up” such that it makes the person who is being spoken to feel stupid. Sometimes the Presuppositional apologist acts puffed up with knowledge and wisdom of various arguments, speaks down to people, and is trying to win an argument. Ken Ham goes out of his way in the book to emphasize how the Christian apologist needs to be aware of this and to ensure kindness, gentleness, and respect is used when confronting false teachings, ideas, and worldviews. The goal isn’t to win an argument, and we need to be humble. The goal is to help people see the truth so they can be saved from their sins through Jesus Christ.
I've read almost all of Ken Ham's stuff and it's always very good. This is my favorite from him though. From arguments for presuppositional apologetics, to using Greg Bahnsen and Van Til, to diving into the attributes of God and the Trinity and the intra-Trinitarian eternal love, to bringing up lost and forgotten attributes of God or attributes people don't like to accept, to upholding the authority of the Bible as the Word of God and dispelling every other religion and philosophy by working through them all with the Bible. It's so thorough and rich. I knew he believed this stuff but some of this specific stuff he doesn't mention directly but you can see he believes it indirectly more often than not. It was wonderful seeing him affirm it all and he gave some extremely compelling arguments in apologetics and helped introduce Van Til and Bahnsen to new readers. I loved it so much. Very grateful for it.
I deeply appreciate resources that help me equip my kids to stand confidently in their faith, and Defending God’s Existence does exactly that. Ken Ham explains foundational apologetics in a way that is clear, biblical, and accessible for families, making big worldview questions feel understandable rather than intimidating. I love how the book encourages children to think critically, evaluate what they hear from culture, and build their convictions on Scripture. It’s been an excellent tool in our homeschool for strengthening both understanding and confidence in the truth of God’s Word.
If you don't presuppose Ham's version of a deity, this book won't help you or explain much. It was amusing for him to attack other sects of Christianity and apologetics. This book was more of an attempt at a refutation of what he percieves about other faiths and some philosophies I would not call faith traditions.
Side note, why does he bring up Bill Nye so much? I get they had a debate but that was a while ago. Nye has a book in response but has not mentioned it since.
This book is a main meal, not a starter or desert. It explains difficult concepts in depth and challenges your thinking on each topic. Very well researched and gives a lot of information. Not an easy read though. If you want to use it as part as your schooling, set a good chunk of time apart for discussion and dissection.
This is a great book to guide you in apologetics 101. Not only does it outline common objections, but it also explains other faiths with those objections. I really like the lists and guides it has throughout the book as well.