There was a time when the old, the tried and true, were revered and honored as they’ve withstood the test of time. This is particularly true in the historic Christian Church. Theologians would always stand on the foundations of the preceding generations of tested works and expositions because of the rich foundation of exegetical work that ancient faithful put in them and the knowledge that could be extracted from these works.
Today, it seems like more and more we toss aside the solid works of historic theology in favor of the modern, the fresh, and the new. Tim Keller is a prime example of this as he represents a wave of postmodern thinking that has so infected the Church. Works of the Puritans and the Reformers and works of the early Church fathers — these collect dust on the bookshelves as many have given them a backseat to the influx of the nuanced and noncontroversial.
Yet, Keller, adds very little to the treasury of knowledge we have about our God and I would actually argue that his contributions have caused more harm than good. In fact, through Tim Keller, the postmodern mindset has become a normal way of thinking and teaching in churches and seminaries.