“Here is the basis of the modern critical biblical science, which treats the documents of Christianity and Judaism according to the same principles of historical investigation which are valid in all other historical domains, particularly in that of the history of the ethnic religions.
The attempt has been crowned with brilliant success. Everywhere, where formerly miracles and oracles, the activity of supernatural persons, and the appearance on the scene of supernatural beings were thought to be discerned, there shows itself now a constant succession of events that are natural, i. e. in accord with the universal laws of human experience. The prophets appear no longer as media of supernatural oracles, but as men whose works and words are perfectly explicable from the character regarded in connection with the conditions of their age and environment. They stand, indeed, in a certain respect above their contemporaries, so far as they contest the modes of thought and action of the latter, and hold before them higher ideals of purer piety and morality; yet these ideals were not communicated to them from without by supernatural revelation, but sprang from their own spirit as products of an especially powerful and happy religious-moral nature, which, under the influence of historical relations, had been so developed that they saw clearly what was perverted in the mode of thought of others, and gave to the better a potent expression.”

Source: Evolution and Theology (1900), pp. 10-11.