Christian apologetics is the discipline of giving reasons to believe the Christian message and reasons to reject intellectual attacks on Christianity. Its purpose is to help individuals by defeating intellectual objections so they can hear and accept the Christian message.
Apologetics is a thriving business among Protestants; not as much among the Catholics and Orthodox. Presuppositional apologetics, which is controversial even among Protestants and is largely associated with Calvinism, is based on two insights.
The first is that false presuppositions about the basic nature of reality will block an individual’s ability to accept the Christian message. All the correct evidence and reasoning in the world will do him no good until he corrects his false presuppositions.
This is ultimately not a rational process. Calvinism places a special emphasis on the Bible passages teaching that mankind in its natural state cannot help but reject God until God gives the individual spiritual life which is the ability to accept the Christian message. See, e.g., John 6:44 and Ephesians 2:1—10. But God also works through means, and one means of coming to faith is to hear and accept true evidence.
Many Christians reject presuppositionalism because in their experience it looks like circular reasoning: “You cannot prove God, you can only presuppose Him.” Some Christians may talk this way, but you can prove God. You just have to know the correct way. Ultimate truths are not known using ordinary ways of reasoning. See here for more details.
In any case, it’s clear that everyone has presuppositions, that most people are only dimly aware of exactly what they are, and that false presuppositions cause false beliefs, especially false beliefs about the most fundamental facts of reality. Continue reading