Christian Apologist

William Lane Craig

Philosopher & Theologian · b. 1949

William Lane Craig is the most prominent Christian apologist working today. A Research Professor of Philosophy at Talbot School of Theology and Houston Baptist University, he holds doctorates in both philosophy and theology from universities in Birmingham and Munich. He has spent decades doing something unusual: making the case for God’s existence not through scripture or personal testimony but through formal philosophical argument.

Whatever you think of his conclusions, Craig is a formidable debater. He is disciplined, well-prepared, and fluent in the technical literature of analytic philosophy. Atheists who underestimate him on stage tend to regret it. His debates with Christopher Hitchens and Sam Harrisare widely studied, and not always to Craig’s disadvantage.

The Debates

Craig has debated most of the leading voices in secular philosophy and science, including Hitchens (2009), Harris (2011), Austin Dacey, Lawrence Krauss, and many others. He has challenged Richard Dawkinsto a debate on multiple occasions. Dawkins declined, arguing that debating Craig would give undue credibility to a position not worthy of a scientific platform — a decision that itself became a point of controversy. Craig’s supporters called it evasion. Dawkins maintained that a scientist has no obligation to provide a stage for theology.

Craig’s debating method is deliberately structured: he typically opens with five arguments for theism, then challenges his opponent to rebut each one. This “Gish gallop” approach — presenting multiple arguments in rapid succession — puts his opponents under pressure to cover ground rather than develop any single counter in depth. Critics argue this is a rhetorical strategy as much as a philosophical one.

Core positions

The Kalam Cosmological Argument

Craig’s signature argument holds that whatever begins to exist has a cause, the universe began to exist (supported by the Big Bang and the impossibility of an actually infinite past), therefore the universe has a transcendent cause. Critics argue this conflates physical causation with metaphysical necessity, and that the conclusion — a personal, omnipotent creator — doesn’t follow from the premises.

The Fine-Tuning Argument

The physical constants of the universe appear extraordinarily calibrated for life. Craig argues this is best explained by a designer rather than chance or necessity. Critics point to the multiverse hypothesis, the weak anthropic principle, and the question of what a designer’s existence would itself require.

Objective morality requires God

Without a transcendent grounding, Craig argues, moral claims reduce to subjective preferences. Therefore the existence of objective moral obligations implies a moral lawgiver. Sam Harris and others counter that human wellbeing provides an objective moral foundation that requires no supernatural anchor.

The Resurrection as historical event

Craig defends the resurrection not as a matter of faith alone but as the best historical explanation of three accepted facts: the empty tomb, post-mortem appearances, and the origin of resurrection belief among the disciples. Historians and philosophers of religion continue to debate whether a miraculous explanation can be historically warranted.

The kalam cosmological argument: Whatever begins to exist has a cause. The universe began to exist. Therefore, the universe has a cause — and this cause must be uncaused, beginningless, changeless, immaterial, timeless, spaceless, and unimaginably powerful. On the basis of the argument alone, this is a remarkably close description of God.

William Lane Craig, Reasonable Faith

Where his arguments fall short

Craig’s arguments are taken seriously precisely because they are not easy to dismiss. But several structural problems recur across his case:

The Kalam relies on the premise that “whatever begins to exist has a cause” — a rule derived from everyday experience. Whether that principle applies to the origin of the universe itself, which may not have “begun” in any ordinary sense, is precisely what is at issue. The argument also smuggles in personhood: even if the universe has a cause, nothing in the argument establishes that this cause is a thinking agent rather than, say, a prior physical state.

The moral argument assumes that objective morality requires a divine grounding — but this is a contested philosophical claim, not an obvious premise. Sam Harris, Peter Singer, and others have offered accounts of objective morality that do not appeal to God. And the argument faces the ancient problem Plato identified in the Euthyphro: is something good because God commands it, or does God command it because it is good? Either horn of that dilemma creates difficulties for the theist.

The resurrection argument faces the methodological challenge that historical reasoning generally excludes miraculous explanations as the least probable account of any event. To invoke a miracle as the “best explanation” requires first establishing that miracles are possible and probable enough to enter the explanatory competition — which is exactly what is in dispute.

Best quotes

The kalam cosmological argument: Whatever begins to exist has a cause. The universe began to exist. Therefore, the universe has a cause.

Reasonable Faith, 2008

If God does not exist, objective moral values and duties do not exist. But objective moral values and duties do exist. Therefore, God exists.

Standard debate formulation

The person who follows the evidence and argument wherever they lead, even to an uncomfortable conclusion, is the most intellectually virtuous person.

Various debates

It is the height of hubris to think that we, with our finite minds, could comprehend what God has in store for the totality of human history.

On the problem of evil

The resurrection is the best explanation of the historical facts surrounding the empty tomb, the post-mortem appearances, and the origin of the disciples’ belief.

Reasonable Faith, 2008

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