From Plato to the Trinity

In Plato’s dialogue Euthyphro, two characters discuss the nature of the divine. While Euthyphro considers himself an expert in pious living, Socrates dismantles his arguments. In so doing, he not only shows that Greek polytheism is internally inconsistent, but the logical extension of this reasoning gives multiple insights into the identity of God or gods, endorsing and discrediting various religious tenets. We find that the Trinity, perhaps uniquely, remains viable in the face of Socrates scrutiny.

A Fisherman Solves the Euthyphro Dilemma

As Socrates awaits trial for impiety and corrupting the youth, he attempts to ascertain the definition of piety. When Euthyphro explains that piety and holiness is that which is loved by the gods, Socrates states, “The point which I should first wish to understand is whether the pious or holy is beloved by the gods because it is holy, or holy because it is beloved of the gods.”

This is known as the Euthyphro Dilemma because both explanations lead to unsatisfactory conclusions. If something is loved by the gods “because it is holy”, then Euthyphro must explain why, which he is unable to do. But the larger problem is that if it is holy, pious, or simply good apart from the gods, this means that this truth is somehow more fundamental than the gods. Therefore, the gods acknowledge, not determine, the objective truth. In this way, they are subservient to what is holy, and that is hardly befitting a god.

The second option, that something is “holy because it is beloved of the gods” also gives pause. This means that the holiness or goodness is somewhat arbitrary or subjective. It is what the gods happen to like. The conscience of most people seems to argue otherwise: right and wrong is not decided by anyone, but goodness is an objective standard.

At, we typically write about spirituality in popular movies, TV, and literature, so I cannot help but think of a line found in Harry Potter, when the villian Voldemort states, “There is no good and evil, there is only power…and those too weak to seek it”. In this way, he seems to agree with the second option from the dilemma, that might (i.e. the gods) makes right, but I hope most of us would disagree with him.

From an actual game called Socrates Jones
From an actual game called Socrates Jones

About five hundred years after Plato penned this dialogue, a Galilean fisherman named John solved the Euthyphro Dilemma with three simple words: “God is love” (1 John 4:8,16). God is the objective standard. It means that goodness/holiness/piety is not the subjective fancy of the divine, nor is it greater than the divine. It is the divine. John did not merely say that God is loving, but that He is Love incarnate. Hence, goodness is that which is consistent with God’s nature.

Note that we did not switch to monotheism incidentally. There are not multiple objective standards of goodness, but one. In the dialogue, Socrates points out that the gods often disagree, so they cannot all be the same objective standard. Hence, “God”, not “gods”, is love. Thus, Plato’s argument leads us to the conclusion that if the divine exists, it cannot be independent gods1, or persons, but one personal God.

As the remainder of this post deduces the nature of the divine based on the idea that God is the objective standard, we must first determine if this standard of goodness exists. To do so, we can use a modified version of the Euthyphro Dilemma, saying that “good is that which is loved by humans”.

But do humans love goodness because it is good, or is it good because humans love it? In other words, do humans acknowledge that something is good fundamentally or is it made good by humans? The latter is fraught with the same problems in the dialogue: not all humans agree and Voldemorts “might makes right” notion is instinctively wrong. So, we turn to the former, that humans acknowledge (or fail to acknowledge) that something is good fundamentally. But this means that the goodness is fixed apart from us. That is a problematic conclusion for a god, but not a human (unless the human wants to think of themselves as god). Hence, the objective good fundamentally exists apart from humanity.

Only a Person Loves

Why can’t goodness simply exist as the objective standard and not as a person? After all, we don’t normally think of love as a person.

Let’s start by using John’s axiom that love is the objective standard that encompasses all of goodness2. We’re not speaking of romantic love, but more broadly of the Greek term, agape. At a minimum, this can be defined as willfully valuing the welfare of another person, i.e. benevolence or altruism.

Many things in this world are beneficial, such as my comfy recliner that I sit in while writing blog entries, but I would never say that it loves me3. It’s not a person, but an object, and objects don’t love. Most would also argue that democracy benefits society, but it would be equally silly to say that democracy loves us, showing us that concepts don’t love either.

If love exists as the objective standard, then a person must exist to do the loving. If the divine is love itself, then the divine must be a person because only persons love.

Michael Reeve's "Delighting In the Trinity" Blah Blah
Michael Reeve’s Delighting In the Trinity not only explains the rationality of the Trinity but showcases His Beauty as well.

While I feel the argument is more obvious if we equate the objective standard to love, it still holds if we see it as moral goodness. Again, my chair is good, but not objectively so. Nor is it willfully good. Moral goodness has intention to it, and intention requires that it comes from a person with a will.

Only a Person Can Be Loved

Just as one needs to be a person in order to love, i.e. to be the lover, one needs another person to love4. (Failing to understand this truth cost the Jedi dearly, but President Whitmore of Independence Day embraced it.) Someone might respond, “Yes, love requires a beloved, so God creates us.” But, this would mean that God needs us in order to be Himself. That would not only make Him dependent on His creation, it is incoherent. How could love not be love? Similarly, what would He be prior to the existence of humans? How could love become love? No, for God to be complete and independent of anything but Himself, He must be eternally the lover and beloved, which John and more importantly Jesus identified as the Father and the Son.

So, why the Holy Spirit? One argument is that God’s love is not an exclusive love, only between two persons, shutting others out. Instead, His love is inclusive. Michael Reeves writes in Delighting in the Trinity, “But when the love between two persons is happy, healthy, and secure, they rejoice to share it.” As before, God does not need a creation to share the love between Father and Son.

From Plato’s dilemma, we can conclude that the divine is at least three persons5 who are in their essence the one and only objective standard of goodness. But why not more than three?

If we reasonably assume that a God defined by love would seek to make Himself known and share that love, then some world religion would match these conclusions. To my knowledge, only6 the Trinity satisfies the Euthyphro Dilemma. Hence, the divine comes into focus as Father, Son, and Holy Spirit.

More than a philosophy, John knew the God who is Love firsthand. D.L. Moody noted that “The Gospel of John opens with Jesus Christ in the bosom of God, and closes with the sinner in the bosom of Jesus Christ.”
More than a philosophy, John knew the God who is Love firsthand. D.L. Moody noted that “The Gospel of John opens with Jesus Christ in the bosom of God, and closes with the sinner in the bosom of Jesus Christ.”

Invited Into Love

Let’s summarize. From Plato’s work, we have deduced much about the nature of the divine. First, it is the objective standard of goodness, which exists apart from us. This requires that this divine is personal: not one or two, but at least three persons who are the one standard of goodness, love incarnate. Consequently, the Trinity is the best description of God found in the world.

So, can we conclude that God truly exists as Father, Son, and Holy Spirit? If there is an objective standard of goodness, a fundamental right or wrong, then the answer must be yes. If you know deep down that Love is real and beautiful and objectively good, then there is wonderful news: Love itself made you, cares for you, and invites you into the greatest community that has ever existed. As John recorded Jesus’s prayer:

“Father, I want those you have given me to be with me where I am, and to see my glory, the glory you have given me because you loved me before the creation of the world… I have made you known to them, and will continue to make you known in order that the love you have for me may be in them and that I myself may be in them” (John 17:24-26).


  1. As a clarification, “hard polytheism”, which is the belief in separate, distinct gods, does not satisfy the Euthyphro Dilemma. “Soft Polytheism” which will be discussed in a subsequent footnote is still a possibility.
  2. From scripture, this is not hard to argue as Jesus himself says that all of the commandments are based on loving God and loving others (see Matthew 22:35-40).
  3. But I love my chair.
  4. Ok, so I don’t actually love my chair. I don’t wish for its welfare for its benefit, nor am I altruistic towards it. I just really, really like it for my sake.
  5. If you don’t like the last argument regarding the Holy Spirit, which I feel is the weakest, then we can at the very least conclude that the divine is more than one person, and the following argument still holds.
  6. At this point, some may argue that soft polytheism, the belief that the pantheon is not separate beings but are all one God, would satisfy the Euthyphro dilemma. That is the case provided that the gods are (1) objectively good, (2) in complete agreement, (3) eternal (i.e. always existed), and (4) separate persons (and not just different representations or roles of the same person, such that one can love another). Furthermore, many (if not most or all) soft polytheists also believe that the entire world, including us, are one with this divine. And while this is not immediately outside of our conclusions from the Euthyphro, it carries with it rather problematic corollaries. Most notably, it would require that the world is also the objective standard of love, and it is not my experience that every aspect of this world embodies love. James Cameron’s Avatar presents this theology and its shortcoming. Consequently, the story dramatically transforms its notion of God to be an enjoyable movie.

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