Francis A. Schaeffer on the Jesus of HistoryThe God Who Is There, (Downers Grove, IL: InterVarsity Press, 1968), p72.
The old liberal theologians in Germany began by accepting the presupposition of the uniformity of natural causes as a closed system. Thus they rejected everything miraculous and supernatural, including the supernatural in the life of Jesus Christ. Having done that, they still hoped to find a historical Jesus in a rational, objective, scholarly way by separating the supernatural aspect of Jesus’ life from the “true history”. Their search for the historical Jesus was doomed to failure. The supernatural was so intertwined with the rest that if they ripped out all the supernatural, there was no Jesus left! If they removed all the supernatural, no historical Jesus remained; if they kept the historical Jesus, the supernatural remained as well.