This is the first in a series of apologetics-related posts where I try to explain or defend various elements of the Christian faith. Before starting, I'll outline my view on apologetics. I don't think it's possible to objectively 'prove' Christianity in such a way that a rational person would be compelled to believe it. Christianity is more than just a religion, or set of beliefs: it's a dynamic relationship with God, and entering into such a relationship will always take a leap of faith. That's not to say, however, that apologetics is useless. Many people have intellectual obstacles to believing; questions of faith or unresolved issues with some element of Christianity. The duty of apologetics is to clear away these obstacles and make straight the path to belief.
That said, today I'm going to prove the existence of absolute truth. Cool, huh? I imagine many of you have heard some variant of this, but maybe I just feel it's everywhere because I read lots of books that deal in such things.
The basis of my proof is this: the statement "There is no absolute truth," or "Truth is relative," or any such variant, is self-refuting in much the same way as "This statement is false." If there really is no absolute truth, and truth is relative for everyone everywhere as postmodernists would claim, then it's absolutely true that there is no absolute truth, which is a contradiction. If there is no absolute truth, then making sweeping statements saying so is impossible. So clearly absolute truth does exist. This says nothing about what that absolute truth is like or what is absolutely true. The important thing is that it opens the possibility for this truth to exist. There is real, objective truth out there, and we may as well try to find it.