If one frames the question a little differently its more fun, philosophically. Reference the Trinity to truth. The Father is absolute truth, those things that are immutable truisms. The Son is perceived truth, through a narrow, younger if you will, vision of the world. The Holy Ghost is what we would like the truth to be, something ephemeral, hopeful, which changes dependent on our circumstances. Is it biblical, well the bible purports to being truth of gods will in written form, but is coloured by mans perceptions and hopes of its teachings. So what are we debating, the trinity of religion or of truth, as I see it, the trinity of truth. Actual, Perceived and Hoped, is the same for all irrespective of faith.