I read a lot of Trinitarian theology last semester at Duke Divinity school, most of it trying to discern how believing in a Triune God might affect the way people of different religious faiths relate to one another. The other great Monotheisms, Islam and Judaism, of course reject the Trinity as they reject Jesus as divine. But what if the Christian belief in the Triune God is the very basis on which Christians can accept Jews as Jews, Muslims as Muslims, and atheists as atheists? Different theologians have explored how the Trinity might be a good place to ground a Christian theory of religious pluralism. S. Mark Heim has gone so far as to say that God’s own inner diversity shows God’s intention for a diverse humanity, even including religious diversity. In other words: People might believe in a non-Trinitarian God because they were made by a Trinitarian God. Mind-blowing.
I wasn’t expecting to find resonance in Charles Darwin, whose name has been used in so much anti-religious fervor. But in his 1857 letter to Asa Gray, Darwin wrote about the “principle of divergence” and how “the same spot will support more life if occupied by very diverse forms.” We might not want to make a precise analogy to human society when Darwin concludes that “each new variety or species, when formed will generally take the place of and so exterminate its less well-fitted parent.”
That line of thinking could easily lead us to euthanasia. But, taken with his observation that diversity fosters life, we might say that co-existence with others forces a species to adapt, and everyone is better for it. Consider the converse of Darwin’s statement: The same spot will support less life if occupied by a unitary form. There is something life-giving – Heim might say “divine” – about difference.