Marsden answers that just because Christian scholarship is not always unique or completely distinct from other perspectives does not necessarily suggest it has no value.
Humans naturally bring a holistic view to the perception of any patterns.
We cannot escape these ways of looking at the world. We do not exclude the perspectives we grow with simply by not acknowledging them. And if we all have a world view, perhaps it is important to ask why the Christian scholar would work so diligently on occasion to exclude this perspective from scholarly endeavors. Faith based perspectives naturally have the most meaning in contexts of larger significance, how humans relate to each other and the universe, than in more narrowly defined empirical observations. The Christian can bring a perspective to a discipline which gives continuing life to the important questions which have been asked from the beginning of time.