Discovering Human Sources
The Urantia Book refers to the use of "more than one thousand human concepts . . . assembled from the God-knowing mortals of the past and the present" in the writing of Part I (0:12.12), and the use of the thoughts and expressions of "more than two thousand human beings who have lived on earth from the days of Jesus down to the time of the inditing of these revelations" in the writing of Part IV (121:8.13)
Click https://urantiabooksources.com link to open resource.