Jesus said “I am the truth.” And the postmodern said, “What is truth?”
I don't think that it is the desire of postmoderns to ditch objectivity. Rather, I think that postmodern philosophy has showed us a valuable lesson about our perception of reality, and I’ll repeat it here (from my loooong post on Darwinism below):
The idea that we can separate the subject (me) from the object I wish to study is a fallacy; there really is no such thing as pure objectivity. Our "objective" interpretations are always clouded by our preconceived ideas.
Postmodern Christians are not applauding subjectivity, they are simply recognizing it as fact. When our "objective" interpretations are clouded by our preconceived ideas, we naturally search for ideas that are cohesive with these preconceptions, instead of new ideas that may challenge those preconceptions.
Postmodern Christians think it is helpful to recognize this, instead of pretending that we are always capable of being "objective."
So, Jesus is the "Truth." A postmodern Christian like myself accepts that Jesus said this, and meant it. I accept that the object of truth is Jesus. But then the tricky part comes into play--how do I perceive this truth? My subjectivity in understanding the object of truth is getting in the way. I must recognize this if I am to get closer to the real meaning of the object.
My subjectivity in understanding what Jesus meant is manifested in a number of ways:
(1) My preconceptions of what the word "TRUTH" means (Does he mean a propositional fact that can be stated about reality, like what I would be able to answer on a test? Does he mean truth as in Jesus tells no lies? Does he mean that he actually existed? Does he mean truth as in true relationship? Does he mean sincerity in action? [Many of these questions I derived from Webster's many definitions of "Truth"]).
(2) My culture's understanding of what "truth" means (including all the sub-cultures in which I dwell, for instance...I am a white, middle-class male who grew up in suburban Ohio, I've been surrounded most of my adult life by conservative Christians who understand the Christian life as mainly knowing the right doctrine, thus defining "truth" in those categories. Therefore my preconceptions of the word "TRUTH" would be different than someone in a different part of the world living in different circumstances, experiences, and hanging around people who think of "truth" mainly as "sincerity in action," let's say...)
(3) The cultural/time barriers between myself in 21st Century USAmerica and Jesus in 1st Century Palestine. Jesus' intention in what HE meant by "truth," and the manner I've been taught to arrive at that intention, are not always a neat and tidy exercise.
So, what is truth? Is Jesus absolute truth? YES. He is the way, the truth and the life.
Can I perceive this truth? Yes. He has given me the ability, through His Spirit, to increasingly perceive His truth. As I increase in holiness, the better I perceive Jesus.
Can I perceive this truth absolutely? No. For now we see through a glass, darkly. My subjectivity is part of the cloudiness—now I know only in part. But one day, I will be face-to-face with truth, and I will fully know Jesus just as I also have been fully known by him.