Check out this short paper on truth and postmodernism by Christian philosopher Douglas Groothuis.
The correspondence view of truth, held by the vast majority of philosophers and theologians throughout history, holds that any declarative statement is true if and only if it corresponds to or agrees with factual reality, with the way things are. The statement, “The desk in my study is brown,” is true only if there is, in fact, a brown desk in my study. If indeed there is a brown desk in my study, then the statement, “there is no brown desk in my study,” is false because it fails to correspond to any objective state of affairs.
The titanic statement, “Jesus is Lord of the universe,” is either true or false. It is not both true and false; it is not neither true nor false. This statement either honors reality or it does not; it mirrors the facts or it does not. The Christian claims that this statement is true apart from anyone’s opinion (see Romans 3:4). In other words, it has a mind-independent reality. Minds may recognize this truth, but minds do not create this truth. This is because truth is a quality of some statements and not of others. It is not a matter of subjective feeling, majority vote or cultural fashion. The statement, “The world is spherical,” was true even when the vast majority of earthlings took their habitat to be flat.
The correspondence view of truth entails that declarative statements are subject to various kinds of verification and falsification. This concerns the area of epistemology, or the study of how we acquire and defend knowledge claims.  A statement can be proven false if it can be shown to disagree with objective reality. The photographs from outer space depicting the earth as a blue orb (along with prior evidence) falsified flat-earth claims. Certainly, not all falsification is as straightforward as this; but if statements are true or false by virtue of their relationship to what they attempt to describe, this makes possible the marshaling of evidence for their veracity or falsity. 
Therefore, Christians — who historically have affirmed the correspondence view of truth — hold that there are good historical reasons to believe that Jesus Christ rose from the dead in space-time history, thus vindicating His divine authority (see Romans 1:4; 1 Corinthians 15:1-11).  The Apostle Paul adamantly affirms this view: “And if Christ has not been raised, our preaching is useless and so is your faith. More than that, we are then found to be false witnesses about God, for we have testified about God that he raised Christ from the dead” (1 Corinthians 15:14-15). Without the correspondence view of truth, these resounding affirmations ring hollow. Christianity cannot live and thrive without it.
This is a great article from a very smart guy who has written extensively about truth and postmodernism. Doug also has a blog, in case you want to pay him a visit.