Consequently, apologetics is also an important tool in the task of calling the non-Christian world to faith in Christ. If Christianity can be shown to be true, then we are able to approach unbelievers with confidence. We are not just inviting them to make a change in their personal taste and preference, but to confront objective truth in Christ. The over-arching issue is how we can come to know truth in religious matters. We begin by looking at contemporary relativism.
Relativism makes light of truth by claiming that contradictory beliefs can be just as true.
So, first of all we need to show that relativism cannot be maintained. Then we give a basic analysis of truth and knowledge that makes it possible, in very general terms, to claim knowledge of certain truths. Even though each of these methods has a place in our total knowledge, they are not sufficient to make a strong case for the truth of Christianity. Each of these views contain some fatal flaw at its core. Then we present a positive case for God's existence by means of the cosmological argument.