If you read enough apologetics, you eventually run into a fight between schools. Classical apologists arguing with presuppositionalists. Evidentialists rolling their eyes at both. Reformed thinkers insisting their method is the only one that takes the noetic effects of sin seriously.
For the working Christian who is just trying to talk to their coworker, this fight is mostly a distraction. The schools are tools. Different conversations need different tools. The mature apologist is the one who can move between them depending on what the other person actually needs.
Here are the five, in plain English, with the kind of person each one fits best.
1. The Classical method
Start with the existence of God. Then move to the truth of Christianity specifically.
The classical apologist uses arguments like the cosmological argument (the universe needed a cause), the moral argument (objective morality requires a moral lawgiver), and the teleological argument (the universe’s fine-tuning points to a designer). Once theism is established, the historical case for Jesus’s resurrection becomes the natural next step.
Who this fits: People who are open to philosophical argument and start from a roughly neutral position about whether God exists. Many thoughtful agnostics. Some atheists who are willing to engage on the metaphysics. The classical method is patient, sequential, and assumes the conversation has time to breathe.
Where it struggles: People for whom the question is not really “is there a God” but “is your particular God worth trusting.” Philosophy can establish theism. It cannot, by itself, establish that the God of Christianity loves you. That comes from elsewhere.
2. The Evidential method
Start with the historical evidence, specifically the resurrection, and let the conclusion of “Jesus rose” drag the rest of theism along behind it.
The evidentialist points at the same body of historical data the minimal-facts argument uses (Habermas, Licona): the empty tomb, the appearances, the conversion of Paul and James, the willingness of the disciples to die for what they had seen. If the resurrection actually happened, theism is no longer up for debate, and the specific God in question is the one Jesus identified.
Who this fits: People who respect historical evidence and who can hold a long argument. Lawyers. Scientists. People who say “I’d believe if there were evidence.” The evidentialist meets them on the terrain they have already chosen.
Where it struggles: People for whom the issue is emotional rather than evidential. A grieving parent does not need a historical case. They need to know whether God is good. That is a different conversation.
3. The Presuppositional method
Don’t argue on the unbeliever’s terms. Argue that their terms cannot stand on their own, and that only Christianity provides the foundation for the things they are already assuming.
The presuppositionalist (Cornelius Van Til, Greg Bahnsen, John Frame) presses on the unbeliever’s worldview from inside. You believe in objective truth: what grounds that, in a worldview without God? You believe rape is wrong: on what basis, if morality is just evolved preference? You believe logic is universally binding: why, if the universe is just particles in motion?
The argument is not that Christianity wins on shared neutral ground. It is that there is no shared neutral ground, and only Christianity provides the foundation for the human experiences everyone (including the atheist) already takes for granted.
Who this fits: People who are intellectually serious atheists or naturalists. Especially people who pride themselves on rigor. The presuppositional method exposes the unstated commitments under their stated commitments, and many find that exposure clarifying.
Where it struggles: Most ordinary conversations. The method requires both sides to be philosophically articulate. Done badly, it sounds smug. Done well, it requires more philosophical training than most working Christians have.
4. The Cumulative case
No single argument is decisive. But the convergence of many independent lines of evidence (cosmological, moral, historical, experiential) adds up to something a reasonable person should take seriously.
The cumulative-case apologist (Richard Swinburne, William Lane Craig in many of his more pastoral writings) is not trying to land a knockout. They are building a case the way a prosecutor builds one: many witnesses, many pieces of evidence, no one of which proves the verdict, but all of which together make it the most reasonable conclusion.
Who this fits: People who are not satisfied by any one argument but might be moved by the weight of many. Honest skeptics who are willing to weigh the case as a whole. Most thoughtful undecided people.
Where it struggles: Time. The cumulative case is long. A casual conversation rarely has room for it.
5. The Experiential / testimonial approach
Tell the truth about what God has actually done in your life and the lives of the saints. Let the story do work the argument cannot.
The experiential approach is not anti-intellectual. It is recognizing that human beings are persuaded by lived testimony in ways they are not always persuaded by syllogisms. The blind man in John 9 doesn’t have a theological argument. “All I know is, I was blind and now I see.” That is an apologetic, and a powerful one.
Who this fits: Almost everyone, eventually. Even the most rigorous skeptic will sometimes be moved by a real story of changed lives. The experiential approach also works in contexts where philosophy is not welcome: late-night conversations, hospital rooms, the moments when someone is too tired for arguments.
Where it struggles: Standing alone. Testimony without thought becomes “I had a feeling, so it’s true.” It works best when combined with one of the other four methods: content plus testimony.
How to actually use this
Don’t pick a school and join it. Pick a conversation and ask what it needs.
Talking to a hostile atheist who respects rigor? Reach for the evidential or presuppositional.
Talking to a friend grieving a loss? Lead with experiential, and don’t reach for philosophy until they ask.
Talking to a thoughtful, undecided coworker over a long lunch? Cumulative case is your friend.
Talking to your kid about why we believe? Probably some classical, some experiential, all of it slow.
The mature apologist is a generalist. Train in all five. Reach for whichever one fits. The point is never the method. It is the person across from you.