Not even this applies to the doctrine of the trinity. The doctrine of the trinity is so important that not only did Jesus NOT teach it, it is not found in any of the 66 books of the Bible, including the writings of Paul.
To be clear, when I write that the trinity is not found anywhere in Scripture, I mean that neither the word nor the concept of the trinity is explicitly in the Bible. To avoid the inevitable Appeal to Strawman, there simply is no verse that reads something like The nature of God is a trinity - consisting of the Father, Son & Holy Spirit who are co-equal, co-substantial and co-eternal - and if you do not believe this, you cannot be saved but are damned to hell forever. If there were such a verse, it would be the most quoted verse in Scripture by those who claim one’s salvation depends on believing it. What is missing from Scripture is just as telling as what is explicitly taught.
I've never heard this notion that the trinity is correct because it abides by philosophical terms. Can you elaborate?
Yes, but "
abides by philosophical terms" is not how I would put it, and I'm not 100% sure what you mean by that phrase. So I'll elaborate on "the early Church's effort to
explain its experience of the risen Christ in philosophical terms."
The march of Christianity outward from Palestine into the Greek world inevitably resulted in a cultural and philosophical disconnect, as tales told and texts written from a Jewish/messianic perspective were being interpreted by men imbued in a Greek philosophical tradition. Those few scattered passages in the emerging New Testament canon that could arguably be deemed binitarian or (far less frequently) trinitarian yielded no coherent picture of the Son’s participation in the Godhead, and two centuries of patristic thinking were occupied by the effort to weave that idea into a doctrine that was consistent with Scripture. It was thus natural that Greek philosophy, which had long sought to locate an ontological bridge between the One and the Many, between the realm of soul/spirit and the material world, would provide the looms for this tapestry. Particularly in Alexandria, Christianity was discovering its affinity with middle Platonism and using it as a lens through which to view Christian concepts, furnishing the early church fathers with a template for reworking Jewish monotheism into a trinitarianism that could successfully resist devolving into tritheism.
Here's the philosophical problem:
We can express the orthodox doctrine of the Trinity (three “persons” in one God) as a set of propositions in this way:
1. There is only one God.
2. The Father is God.
3. The Son is God.
4. The Father is not the Son.
5. The Holy Spirit is God.
6. The Holy Spirit is not the Father.
7. The Holy Spirit is not the Son.
For simplicity’s sake we need consider only 1 through 4 (for 5 through 7 will stand or fall on the same logical analysis we apply to 1 through 4):
1. There is only one God.
2. The Father is God.
3. The Son is God.
4. The Father is not the Son.
The difficulty in defending the Trinity has always been that these four propositions are, as a group, logically inconsistent when analyzed from the standpoint of the three basic rules of logical equivalence:
self-identity (everything is identical to itself, i.e., x = x);
symmetry (if two things are equivalent, they are equivalent in any order, i.e., if x = y, then y = x); and
transitivity (if one thing is the same as another and that other is the same as a third, then the first is the same as the third, i.e., if x = y and y = z then x = z).
The orthodox doctrine of the Trinity fares ill in this analysis.
To make them logically consistent, it is tempting to sacrifice one of the four tenets – and most early heresies took this tack. Thus, Arius sacrificed the third one:
1. There is only one God.
2. The Father is God.
4. The Father is not the Son.
3′.
Therefore the Son is not God.
and Sabellius sacrificed the fourth one:
1. There is only one God.
2. The Father is God.
3. The Son is God.
4′.
Therefore the Father is the Son.
Both Arius’ argument and Sabellius’ argument are logically consistent because, unlike the orthodox doctrine of the Trinity, they satisfy all three of the aforementioned principles of logical consistency. Arius and Sabellius, although approaching the inconsistency from different perspectives, each preferred rationality to irrationality―even if it meant preferring heresy to orthodoxy.
Now, we Trinitarians have two choices. We can simply throw up our hands and declare that God does not have to play by the rules of logical consistency, thereby forever assigning the Trinity to the status of unfathomable mystery. Or, we can allow for identity and equivalence to be relative to their contexts. Thus, “Robert is good” can be consistent with “Robert is not good” as long as a different sense of “good” holds for each proposition (e.g., he is a good theologian; he is not a good golfer.)
To say that “The Father is not the Son” is likewise context-dependent and predicate-specific. One can maintain without contradiction both that “The Father is not the same
person as the Son” and “The Father is the same
God as the Son” by separating out personhood from Godhood. How to tease them apart is the ultimate challenge of orthodox Trinitarian theology. (I’ll explain why “persons” is a poor word to use in expressing the
hypostasis concept later, but let's use it for now, since it is so ingrained in tradition.)
Because our experiences are of the physical world, so is our language, so is our thinking, and thus we strive for physical analogies to describe a non-material God. Here's how we might approximate it:
Consider the visible spectrum of light waves at frequencies between the limits of infrared and ultraviolet.
The colors are distinct. White is not on the spectrum, because white is not a “color” at all. Rather, white light is produced by combining the colors of the spectrum. More generally, white light is produced in combining three primary colors – red, green and blue. Thus combined,
the distinct colors are not separate.
Distinct but not separate. Three colors. One light.
Another way to think of it is to consider a musical chord, say C-major. Three notes, C + E + G -- each of them rightly thought of as "music" -- combine to make a chord which is likewise "music." Each note in the chord has distinct properties, but there is one chord.
But I use a different physical analogy to accomplish the tease-apart of the Godhead by imagining a tetrahedron, a triangular base resting on the earth with three sides rising to a peak above. You could stand in front of each of the three sides, and a different facet will dominate your senses. Each of the three “persons” in one God is not a person in the ordinary sense of denoting a distinct individual, but a
persona in the sense of a portrayal or a posture, an outward-looking manifestation of an inward unity. The Greek word
prosōpon expresses this rather well—an actor’s mask, a character, a face. We encounter Father, or Son, or Holy Spirit, depending on which face is facing us. The three “persons” are
relational; they are distinct realities of the one God.
The one God’s triune nature persists in each of these three faces, as inseparable from each other as are the sides of a pyramid. In that very unity lies their shared essence. It is not a material essence, not shared as the faces of a pyramid share the same core of stone, eliminating any real distinction of substance comprising the sides. That is where Sabellius went wrong, analogizing to the material world and supposing the common “stuff” of the divine to be the defining substance of a single entity. No, the shared essence of these three persons lies in
what they form in their unity, as the joining together of triangles edge to edge with a common apex forms the shape we know as a pyramid. It is “pyramidness” itself, not what the pyramid as a solid might be made of, that constitutes this essence.
And so it is with the Godhead. We can never fully comprehend the divine “stuff” of God; that is beyond our power to describe through analogies to the physical world. But the concept of God, like the abstract concept of a three-sided pyramid, is revealed by the particular relation, the particular union, of its distinct faces. Without the three, there is not the One.
Or so I muse.