Origen

“ If Celsus had read the Scriptures in an impartial spirit, he would not have said that “our writings are incapable of admitting an allegorical meaning.” For from the prophetic Scriptures, in which historical events are recorded (not from the historical) , it is possible to be convinced that the historical portions also were written with an allegorical purpose, and were most skilfully adapted not only to the multitude of the simpler believers, but also to the few who are able or willing to investigate matters in an intelligent spirit. ”

“ And in another passage the same Paul says: “For it is written, For this cause shall a man leave his father and mother and shall be joined to his wife, and they two shall be one flesh. This is a great mystery ”