Presuppositionalism is a school of Christian apologetics that believes the Christian faith is the only basis for rational thought. It presupposes that the Bible is divine revelation and attempts to expose flaws in other worldviews. It claims that apart from presuppositions, one could not make sense of any human experience, and there can be no set of neutral assumptions from which to reason with a non-Christian. Presuppositionalists claim that a Christian cannot consistently declare his belief in the necessary existence of the God of the Bible and simultaneously argue on the basis of a different set of assumptions that God may not exist and Biblical revelation may not be true. Presuppositionalism is the predominant apologetic of contemporary conservative Calvinist and Reformed churches. Two schools of presuppositionalism exist, based on the different teachings of Cornelius Van Til and Gordon Haddon Clark. Presuppositionalism contrasts with classical apologetics and evidential apologetics.
a belief that takes precedence over another and therefore serves as a criterion for another. An ultimate presupposition is a belief over which no other takes precedence. For a Christian, the content of Scripture must serve as his ultimate presupposition.... This doctrine is merely the outworking of the lordship of God in the area of human thought. It merely applies the doctrine of scriptural infallibility to the realm of knowing.
Comparison with other schools of apologetics 
Presuppositionalists contrast their approach with the other schools of Christian apologetics by describing the others as assuming that the world is intelligible apart from belief in the existence of God and then arguing on purportedly neutral grounds to support trusting the Christian Scriptures and the existence of God. Specifically, presuppositionalists describe Thomistic (also "Traditional" or "Classical") apologetics as concentrating on the first aspect of apologetics with its logical proofs for the existence of God, simply assuming common ground with the non-Christian and utilizing a piece-by-piece methodology. In this scheme, the common foundation of neutral brute facts leads to a generic concept of deity, then to the various characteristics of the Christian God as revealed in Scripture, and so forth. Piece-by-piece, Christian theology is built up from a neutral common ground.
Presuppositionalists assert that many of the classical arguments are logically fallacious, or don't prove enough, when used as arguments to prove the existence or character of God. They criticize both the assumption of neutrality and the "block house" or "piecemeal" method for failing to start at the level of the controlling beliefs of worldviews and implicitly allowing non-Christian assumptions from the start, thereby trying to build a Christian "house" on a non-Christian "foundation". Evidentialists demur from this assessment, claiming that presuppositionalism amounts to fideism because it rejects a neutral starting point for reasoning between the Christian and non-Christian.
The conclusion of evidential apologetics is that the Bible is probably more accurate about what it reports than not, thus the whole of Biblical revelation is probably true, and where we don't have absolute certainty we must accept the most probable theory. The goal of presuppositional apologetics on the other hand, is to argue that the assumptions and actions of non-Christians require them to believe certain things about God, man and the world which they claim they do not believe. This type of argument is technically called a reductio ad absurdum in that it attempts to reduce the opposition to holding an absurd, i.e. contradictory position; in this case, both believing in facts of Christian revelation (in practice) and denying them (in word). So in essence, evidential apologetics attempts to build from a common starting point in neutral facts, while presuppositional apologetics attempts to claim all facts for the Christian worldview as the only framework in which they are intelligible.
The most ancient origins of presuppositional thought are to be found in the Bible itself. It is found in Romans 1:18–22; Psalm 19:1-4; and the teaching of Jesus in the Gospels. It may be found in Wisdom 13:5 and St. John of Damascus; The method of apologetics used in the opening chapters of his work, An Exact Exposition of the Orthodox Faith, is essentially presuppositional. The common ground between the believer and the non-believer is that they both know that God exists, although the non-believer tries to suppress the truth. St. Augustine also hints at Presuppositionalism, especially when he says: “What I do know of myself, I know by Thee enlightening me.” (Confessions, Book 1, Ch. 1) This statement parallels Cornelius Van Til’s statement that “[man’s mind] is itself inherently revelational.” (The Defense of the Faith, Ch. 5)
The modern origins (or rather, the revival) of presuppositional apologetics are in the work of Dutch theologian Cornelius Van Til, a member of the Orthodox Presbyterian Church, who began to adopt a presuppositional approach to defending the truth of his faith as early as the late 1920s. Van Til personally disliked the term "presuppositional", as he felt it misrepresented his approach to apologetics, which he felt was focused primarily on the preeminence of the Bible as the ultimate criterion for truth, rather than denying or ignoring evidence. He did, however, accept the label reluctantly, given that it was a useful way of distinguishing between those who deny a neutral basis for apologetics and those who do not. His student, Greg Bahnsen, aided in some of the later developments of Van Tillian Presuppositionalism, and the Bahnsen Theological Seminary continues to promote presuppositional apologetics in its curriculum. John Frame, another student of Van Til, also continues to advocate a presuppositional approach, although he is generally more critical of Van Til's thought than Bahnsen was. Bahnsen's protégé, Michael R. Butler, has also been active in advancing the field. Among his contributions is a technical, metalogical study of transcendental arguments in general and the Transcendental argument for the existence of God in particular, which he wrote for Bahnsen's festschrift.
By 1952, presuppositional apologetics had acquired a new advocate in the Presbyterian theologian Gordon Clark. He embraced the label "presuppositional" since his approach to apologetics, following his Platonic epistemology, was more closely concerned with the logical order of assumptions than was Van Til. The differences between the two views on presuppositionalism, though few in number, caused a significant rift between the two men, and even after both Clark and Van Til had died, John Robbins (a theologian and former student of Clark's) and Bahnsen were often involved in heated exchanges.
In a 2000 book outlining the major schools of apologetics, the presuppositional approach was given equal time alongside other schools of thought (the "classical" and "evidential" noted above, for example). In general, Van Til's approach is far more popular and widespread than Clark's.
Van Tillian presuppositionalism 
Apologists who follow Van Til earned the label "presuppositional" because of their central tenet that the Christian must at all times presuppose the supernatural revelation of the Bible as the ultimate arbiter of truth and error in order to know anything. Christians, they say, can assume nothing less because all human thought presupposes the existence of the God of the Bible. They claim that by accepting the assumptions of non-Christians, which fundamentally deny the Trinitarian God of the Bible, one could not even formulate an intelligible argument. Though Van Tillians do, at one point, "put themselves in the shoes" of the opponent, "for the sake of argument", to demonstrate where that position would lead, they claim that they can only do so because this is actually God's world, and man is actually God's creature, made in God's own image, and as such can never completely shut God out (in living or thinking) — hence there is always a common basis for dialogue, even though it is, in the presuppositionalist's view, a basis which the opponent is not usually willing to acknowledge and which is decidedly biased rather than neutral.
According to Frame, "[Van Til's] major complaints against competing apologetic methods are theological complaints, that is, that they compromise the incomprehensibility of God, total depravity, the clarity of natural revelation, God's comprehensive control over creation, and so on." Within their presuppositionalist framework, Van Tillians do often utilize foundational concepts for Thomistic and Evidentialist arguments (belief in the uniformity of natural causes, for example), but they are unwilling to grant that such beliefs are justifiable on "natural" (neutral) grounds. Rather, Van Tillians employ these beliefs, which they justify on Biblical grounds, in the service of transcendental arguments, which are a sort of meta-argument about foundational principles, necessary preconditions, in which the non-Christian's worldview is shown to be incoherent in and of itself and intelligible only because it borrows capital from the Christian worldview. For example, where evidentialists would take the uniformity of natural causes in a closed system as a neutral common starting point and construct a cosmological argument for an unmoved mover, Van Tillian presuppositionalists would ask for a justification for the belief in the uniformity of natural causes in a closed system, given the worldview of the opponent, attempting to show that such a belief presupposes the Christian worldview and is ultimately incompatible with the opposing worldview. Van Til summarized the main drive of his apologetic by reason of circular logic, saying: "(T)he only proof for the existence of God is that without God you couldn't prove anything."
Van Tillians also stress the importance of reckoning with "the noetic effects of sin" (that is, the effects of sin on the mind), which, they maintain, corrupt man's ability to understand God, the world, and himself aright. In their view, as a fallen creature, man does know the truth in each of these areas, but he seeks to find a different interpretation — one in which, as C. S. Lewis said, he is "on the bench" and God is "in the dock." The primary job of the apologist is, therefore, simply to confront the unbeliever with the fact that, while he is verbally denying the truth, he is nonetheless practically behaving in accord with it. (Van Til illustrated this alleged inconsistency as a child, elevated on the father's knee, reaching up to slap his face, and Bahnsen used the analogy of a man breathing out air to make the argument that air doesn't exist.)
Another important aspect of the Van Tillian apologetical program is the distinction between proof and persuasion. According to the first chapter of the Epistle to the Romans, man has ample proof in all of creation of God's existence and attributes but chooses to suppress it. Van Til likewise claimed that there are valid arguments to prove that the God of the Bible exists but that the unbeliever would not necessarily be persuaded by them because of his suppression of the truth, and therefore the apologist, he said, must present the truth regardless of whether anyone is actually persuaded by it. (Frame notes that the apologist is here akin to the psychiatrist who presents the truth about the paranoid's delusions, trusting that his patient knows the truth at some level and can accept it — though Frame, as a Calvinist, would say the special intervention of God in the Holy Spirit is also required for the unbeliever to accept ultimate truths.) An implication of this position is that all arguments are "person relative" in the sense that one non-Christian might be persuaded by a particular argument and another might not be, depending on their background and experiences; even if the argument constitutes logically valid proof.
Clarkian presuppositionalism 
Gordon Clark and his followers treat the truth of the Scriptures as the axiom of their system. Like all axioms, this axiom is considered to be self-evident truth, not to be proven, but used for proof. However, the worldview that results from the axiom may be tested for consistency and comprehensiveness. Testing for internal contradiction exemplifies Clark's strict reliance on the laws of logic (He famously translates the first verse of the Gospel of John as "In the beginning was the Logic, and the Logic was with God, and the Logic was God.") Thus, in order to invalidate non-Christian worldviews, one must simply show how a different presupposition results in necessary logical contradictions, while showing that presupposing the Bible leads to no logical contradiction. By contrast, some Van Tillians have suggested that God as He has revealed Himself in Scripture reveals apparent paradoxes.
However, Clark allowed that presupposing axioms (or "first principles") themselves do not make a philosophical system true, including his own; the fact that all worldviews he examined other than Christianity had internal contradictions only made Christianity highly more probable as truth, but not necessarily so. Nonetheless, he believed that this method was effective in many practical cases (when arguing against, for instance, secular humanism or dialectical materialism) and that, in the end, each of us must simply choose (that is, make an informed selection) from among seemingly consistent worldviews the one that most adequately answers life's questions and seems the most internally coherent. (Some Van Tillian critics suggest that the concept of coherence itself must be defined in terms of Christian presuppositions but is instead being used by Clark as a "neutral" principle for discerning the truth of any proposition.)
Using this approach, Clark labored to expose the contradictions of many worldviews that were in vogue in his day and to defend the Christian worldview by proving its consistency over and against those who attacked it. His unflagging use of logic sometimes led him to what most Reformed theologians consider rather unorthodox ideas on such topics as the problem of evil — topics which are most often treated by theologians as paradoxes or apparent contradictions not resolvable by human logic. But Clark famously rejected the idea that Scripture teaches paradoxes and notion of "apparent contradiction", asking "apparent to whom?". He described an alleged biblical paradox as nothing more than "a charley-horse between the ears that can be eliminated by rational massage."
With regard to other schools of apologetics, Clark suggested that the cosmological argument was not just unpersuasive but also logically invalid (because it begged the question), and he similarly dismissed the other Thomistic arguments. As a staunch critic of all varieties of empiricism, he did not tend to make much use of evidential arguments, which yield likelihoods and probabilities rather than logical certainties (that is, either coherence or incoherence).
See also 
- Christian apologetics
- Christian existential apologetics
- Christian philosophy
- Evidential apologetics
- Herman Dooyeweerd
- Total depravity
- Transcendental argument for the existence of God
- Frame (2006).
- Sproul et al. (1984): p. 183.
- Frame (1987), p. 45.
- However, Thomas Aquinas never speaks of "proofs" for the existence of God per se, and on one reading, his "ways" may be taken as demonstrations of the inner coherence of belief in God, rather than proofs. See Alister McGrath The Dawkins Delusion?. Taken in this sense, Van Til, Bahnsen, Frame, et al., have embraced the Traditional arguments.
- Van Til (1967): pp. 122-23, 126-29, 131-32.
- Bahnsen (1998): pp. 266-68.
- Carnell (1948): pp. 113-18.
- Frame (1987): pp. 135-36.
- Van Til (1969): pp. 18-19.
- Oliphint (1991).
- Fernandes (1997).
- Butler (2002): pp. 64–124.
- Hoover (1984).
- See, for instance, Bahnsen response to Robbins, Flood's response to Bahnsen, and Bahnsen's response to Flood — all from Journey magazine.
- Frame (2000).
- Van Til (1967): pp. 351–56.
- Frame (n.d.).
- Refer the Bahnsen-Stein debate, where Bahnsen argued that inductive reasoning cannot be justified on an Atheistic worldview.
- Lewis (1970).
- See Schwertley and Harrison.
- Bahnsen (2002): pp. 37-40.
- Frame (1995): pp. 413-15.
- Frame (1994): pp. 62-3.
- Gordon H. Clark (1998) pp. 115-122
- Crampton (1990).
- Gordon H. Clark (1995) pp. 35-39
- Greg L. Bahnsen (1998). Van Til's Apologetic: Readings & Analysis. Phillipsburg: Presbyterian & Reformed. ISBN 0-87552-098-7.
- Greg L. Bahnsen (ISBN 0-915815-28-1). Always Ready: Directions for Defending the Faith. Robert R. Booth (ed.). Covenant Media Press.
- Greg L. Bahnsen (2002). In Robert R. Booth. Always Ready: Directions for Defending the Faith. Nacogdoches: Covenant Media Press. ISBN 0-915815-28-1.
- Michael Butler (2002). "The Transcendental Argument for the Existence of God". In Steven M. Schlissel. The Standard Bearer: A Festschrift for Greg L. Bahnsen. Nacogdoches: Covenant Media Press. pp. 64–124.
- Edward John Carnell (1948). An Introduction to Christian Apologetics: A Philosophic Defense of the Trinitarian-Theistic Faith. Grand Rapids: Wm. B. Eerdmans.
- Gordon Clark. A Christian View of Men and Things (3rd ed. ed.). Trinity Foundation. ISBN 1-891777-01-7.
- Gordon Clark (1998). Logic (3rd ed. ed.). The Trinity Foundation. pp. 115–122. ISBN 0-940931-81-8.
- Gordon Clark (1995). Religion, Reason, and Revelation (3rd ed. ed.). Trinity Foundation. ISBN 0-940931-86-9.
- W. Gary Crampton (November/December 1990). "Does the Bible Contain Paradox?". The Trinity Foundation.
- John M. Frame (n.d.). Van Til: The Theologian. ISBN 0-916034-02-X.
- John M. Frame (1987). The Doctrine of the Knowledge of God (Theology of Lordship). Philadelphia: Presbyterian & Reformed Publishing Co. ISBN 0-87552-262-9.
- John M. Frame (1994). Apologetics to the Glory of God. Phillipsburg: Presbyterian & Reformed. ISBN 978-0-87552-243-2.
- John M. Frame (1995). Cornelius Van Til: An Analysis of His Thought. Presbyterian & Reformed. ISBN 0-87552-220-3.
- John M. Frame (2006). "Presuppositional Apologetics". In W. C. Campbell-Jack, Gavin J. McGrath, and C. Stephen Evans. New Dictionary of Christian Apologetics. InterVarsity Press. ISBN 978-0-8308-2451-9. Retrieved 2007-03-12.
- John M. Frame (2000). "Presuppositional Apologetics". In Steven B. Cowan. Five Views on Apologetics. ISBN 0-310-22476-4.
- E. R. Geehan (ed.) (1980). Jerusalem and Athens: Critical Discussions on the Philosophy and Apologetics of Cornelius Van Til. Presbyterian & Reformed. ISBN 0-87552-489-3.
- James M. Harrison. "The Presuppositional Apologetic". Retrieved 2007-05-11.
- David P. Hoover (1984). Gordon Clark's Extraordinary View of Men and Things. ISBN 0-944788-22-X.
- C. S. Lewis (1970). God in the Dock: Essays on Theology and Ethics. Grand Rapids, Michigan: Wm. B. Eerdmans Publishing Company. ISBN 0-8028-0868-9.
- K. Scott Oliphint (1991). "Cornelius Van Til and the Reformation of Christian Apologetics". In B. J. van der Walt. Die Idee Van Reformasie: Gister En Vandag.
- Brian Schwertley. "Secular Humanism". Archived from the original on 2007-05-04. Retrieved 2007-05-11.
- R. C. Sproul, John Gerstner, and Arthur Lindsley (1984). Classical Apologetics. Grand Rapids: Zondervan. ISBN 978-0-310-44951-5.
- Cornelius Van Til (1967). The Defense of the Faith. Philadelphia: Presbyterian & Reformed.
- Cornelius Van Til (1969). A Christian Theory of Knowledge. Philadelphia: Presbyterian & Reformed.
||This article's use of external links may not follow Wikipedia's policies or guidelines. (March 2012)|
- John Frame intro to Presuppositional Apologetics Part 1
- John Frame intro to Presuppositional Apologetics Part 2
- VanTil.info - writings by and about Van Til and his apologetic.
- The Trinity Foundation - the shorter writings and audio of Gordon Clark and his disciples for free as well as printed books and audio for a fee.
- The Works of John Frame and Vern Poythress
- Reformed Perspectives' Apologetics - a number of papers and books by John Frame.
- The Hall of Frame - papers by students of John Frame as well as material for Frame's courses at Reformed Theological Seminary.
- Christian Apologetics course taught by John Frame at Reformed Theological Seminary in Orlando, available for free from iTunes U
- The Center for Reformed Theology and Apologetics - many articles and books about the presuppositional approach to apologetics.
- Monergism's Apologetics Articles - extensive collection of essays on presuppositional apologetics
- Frontline Ministries Apologetics Articles - collection of essays on explaining and applying presuppositional apologetics.
- Covenant Media Foundation which offers a variety of audio resources related to presuppositional apologetics by Greg Bahnsen, Douglas Wilson, and some by Van Til himself.
- First Word - articles about Van Til's apologetic.
- The Ultimate Proof of Creation by Jason Lisle.
- Reformation Ministries International e-books espousing a Clarkian presuppositionalism
Debates utilizing a presuppositional approach 
- The Great Debate: Does God Exist? - transcript of a formal debate between Christian Greg Bahnsen and atheist Gordon Stein.
- The Martin-Frame Debate A written debate between skeptic Michael Martin and Christian John Frame about the transcendental argument for the existence of God.
- The Drange-Wilson Debate A written debate between skeptic Theodore Drange and Christian Douglas Wilson.
- "Is Non-Christian Thought Futile?" A written debate between Christian Doug Jones and skeptics Keith Parsons and Michael Martin in Antithesis magazine (vol. 2, no. 4).
- "Biblical Rationalism versus Psycho Assertionism" an informal email debate between Christian Vincent Cheung and atheist Derek Sansone
- "Presuppositional Apologetics Round 2" Second Debate between Sye Ten Bruggencate and Paul Baird on Premier Christian Radio March 2011
Debates and discussions on apologetic method 
- "Presuppositional or Evidential Apologetics?" An audio debate in MP3 format between Gordon Clark (who speaks first) and David Hoover. (Warning: 25 MB download; no streaming available.)
- "Van Til and the Ligonier Apologetic" An article by John Frame from the Westminster Theological Journal analyzing the book Classical Apologetics by R. C. Sproul, John Gerstner, and Arthur Lindsley (ISBN 0-310-44951-0), which itself includes "a friendly refutation of Cornelius Van Til's presuppositional apologetics."
- "A Critique of the Evidentialist Apologetical Method of John Warwick Montgomery", an article by Greg Bahnsen.
- "The Resurrection of Thomism" An article by Doug Erlandson critiquing Thomistic apologetics.
- "Presuppositionalism vs. Evidentialism", a question-and-answer from Creation Ministries International that takes a semi-Clarkian approach to apologetics.
- "Agnostic asks whether biblical Christians commit circular reasoning: role of axioms, internal consistency and real world application", a semi-Clarkian question-and-answer from Creation Ministries International.
- "Presuppositional Spaghetti, the Lottery Paradox, and the Search for God" An article critiquing presuppositionalism.