BoogerMan
In fact, God Himself is a mystery, since the finite mind cannot comprehend the infinite God. The fact that the trinity is a mystery does not mean that what is in Revelation cannot be understood by reason. The doctrine of the Trinity summarizes the biblical data: there is only one God, but at the same time there are three persons, who by nature are what only God can be, and who do things that only God can do. God is one God in three persons: Father, Son and Holy Spirit. This is not meaningless, it is just beyond reason, unprecedented in the created world: God bless you. it does not resemble human ideas (cf. Acts 17:29). Otherwise, the term "Jehovah" or "theocratic organization" is not in the Bible either. 1 Cor 14:33 does not speak about the being of God, but about the need for church order (i.e. he is the God of peace).
"Mystery of faith" (mysterium fidei) in the full sense of the word: every religious truth that the mind, with its sheer natural talents, cannot either determine or understand with its specific concepts. Thus, it contains two components: The mind on its own cannot determine its existence, and even if it has gained knowledge of its existence through revelation, it is subsequently unable to justify it with purely natural reasons; moreover, it cannot define its meaning with specific, but only with analogical concepts. In other words: A mystery of faith is such a religious truth for which the mind on its own cannot determine either that the predicate "must" be asserted about the subject, or that the predicate "can" be asserted about the subject; for example, the one God is three persons; Jesus Christ is truly present in the Eucharist under the appearances of bread and wine. If either of these two components is missing, that is, if the existence of a religious truth can be recognized by reason, but its manner is not comprehensible (for example, God created the world), or its existence cannot be determined by reason, but once we learned it from revelation, its content is already accessible to reason (for example, Christ appointed a head for His Church; there are seven sacraments), then we are not dealing with a mystery of faith in the full sense of the word, a primary mystery, but only with a secondary mystery of faith.
Those who define the mystery of faith as the incomprehensible, indomitable religious truth do not define it accurately. Because there is something incomprehensible, indomitable in every human knowledge; and that is why the deeper-thinking people of every age talk a lot about the depths and mysteries of existence, and praise the docta ignorantia (Nicholas of Cusa). However, this is something entirely different from the nature of the Catholic mystery. The world of nature hides secrets because our mind does not create its realities but faces them as givens and can only perceive them fragmentarily; the mystery of faith, on the other hand, cannot be measured by reason because it is from the higher, superhuman world of realities.
The Bible uses the word "mystery" in two different senses. Generally, it tends to refer to an event or phenomenon in which God and man meet each other, and God gives Himself as a gift to man (Eph 1:9; 3:9-11; 5:32; Col 1:26). The other meaning of the mystery in the Bible is concealment and incomprehensibility (Rom 11:25; cf. 11:33-34; 1Cor 15:51; Rev 17:7). In this regard, theologians categorize the mystery of the Trinity among the so-called absolute mysteries (mysteria absoluta).
The fact that the doctrine of the Trinity is a mystery of faith in the strict sense is indicated by the Jesus himself when he says: "No one knows the Son except the Father; no one knows the Father except the Son, and those to whom the Son chooses to reveal him." (Mt 11,27.) John the Evangelist: "No one has ever seen God; the only begotten Son (the only begotten God), who is in the bosom of the Father, has revealed him." (Jn 1,18) Paul the apostle: "No one knows the things of God, except the Spirit of God." (1 Cor 2:11; cf. 1 Tim 6:16.) Since the Church Fathers Irenaeus and Origen, it has been unequivocally taught that the Trinity surpasses the mind. When the Arians boldly wanted to lift the veil that covers the inner nature of the Deity, their main weapon against their heretical position was reference to the mystery of the Trinity (Iren. II 28, 6; Origen. Princip. IV 1; Athanas. Serap. I 20; Cyril. H. Cat. 4, 7; Basil. Ep. 38, 4; Nazianz. Or. 31, 8; Nyssen. Or. cat. 3; Cyril. Al. Trinit. 3; August. Trinit. IX 1.).
But what does this mean? It cannot be determined by the mere powers of the natural mind that the one divine reality is a trinity of persons.
It's not a posteriori: for the a posteriori proof of God starts from the created world and reaches the absolute being through the thread of causality. It is already a theologically established truth that God's trinity as such is not manifested in creation; for God's external activity is the common work of the three persons: Therefore, the mind does not have a foothold in creation to recognize the one God subsisting in three persons as the absolute being.
And it's not a priori either: we cannot deduce the Trinity from the nature of God known through reason; partly because we do not know the divine reality in a proportionate way, partly because experience does not provide any analogy for a triple relative subsistence of one substance.
But even if we have come into possession of this mystery through revelation, we can neither understand nor subsequently justify it. For even if the analogy of human spiritual life suggests that God's absolute life cannot lack the richness that feeds on the contrast of spiritual activities and life contents, and even if the mind faithfully following the traces of revelation can penetrate a good way into the cloud hiding the Divinity, its laborious thought processes invariably lose their way at three landmarks in the impenetrable fog sea of the mystery:
Initially, independently of the revelation, the mind cannot determine that there are only two categories of spiritual activities and capabilities, reason and will, and hence only two origins are possible in God.
Initially, without revelation, it cannot determine and prove to be necessary that divine life activities are productive; because it is very conceivable from the outset that the object and proportional expression of divine understanding and volition is the independent infinite absolute reality, without the difference of opposing subsistent aspects.
Independently of revelation, the mind can neither determine nor judge it possible that the one divine absolute reality can be the existential content of three subsistent aspects, which are only value-differently from it, but are really different from each other.
While the Trinity is a supra-rational truth, it is not irrational, but completely rational. For the Trinity is God's self-revelation. But God is absolute reason, therefore this revelation is the radiance and evidence of absolute reason. God cannot give anything other than what is his essence. True, the Trinity is a mystery in the strict sense of the word, and therefore the human mind cannot fully demonstrate the logic that this mystery contains. But for this very reason, irrationality cannot be demonstrated from it either. The mind on its own can determine that God is immeasurably superior; this unattainability is always maintained for our mind, whether it reaches for it for understanding or for refutation.
But the mind, illuminated by revelation, can demonstrate in a negative direction that the mystery of the Trinity does not contradict clear arguments, and in a positive direction it can catch a ray of the abundance of light bursting forth from it.
The doctrine of the Trinity could only be shown to be irrational if it contradicted any logical principle, namely the principle of identity and contradiction. But this is not the case. We do not say that the same subject is one and three, but we affirm that the divine reality is one, and the persons are three; or we call the substance one and we state the subsistence as relatively three.
Indeed, the content of the mystery of the Trinity (the triple relative subsistence of one absolute reality) contradicts experience, even the metaphysical findings derived from the material of experience. But its irrationality cannot be inferred from this. For every deeper thinking person has sensed that experience does not exhaust the categories and possibilities of existence, and that is why even within this world, the mind inferring from the present to the past, from the here to the far, is cautiously warned not to hastily infer from non-existence to impossibility. This is particularly true when the mind, leaving the ground of experience beneath itself, rises toward the regions of the absolute Being, where, according to the strict requirement of natural theology, every metaphysical concept must be re-evaluated with the triple method of God-knowledge. Therefore, it cannot be said that the relatively triple subsistence of the absolute Being is irrational; the less so, because reason also determines that God is above the sexes, therefore the Aristotelian categories cannot set a limit to his existential content and mode of existence.
The mind can first and foremost pour its content into systematically processed concepts and thus speak appropriately about it; it can determine which expressions and phrases correspond to the content of the mystery and which do not.
The general rule of speaking about the Trinity is: everything in God is one, where there is no contrast of relations; therefore, if the excellence of nature is the predicate, the subject can be nature or a person; if the predicate is personal excellence, the subject can only be a person. If we now consider that the concrete noun (and the male adjective in Indo-European languages) generally denotes the autonomous reality, the suppositum, hence the person in the doctrine of the Trinity, the abstract noun (and the neuter adjective) denotes the nature, it is generally not difficult to navigate and determine the correctness or incorrectness of a phrase or expression. Thus,
a) we can say that the Father, as well as the Son and the Holy Spirit, are eternal, omnipotent, etc., but we cannot speak of three eternal or omnipotent entities.
b) It is correct: the Son is someone else (alius) than the Father, but not: the Son is something else (aliud). It's correct: the one God is in three distinct persons (in tribus personis distinctis), not correct: the one God is divided into three persons (in tribus personis distinctus), as this endangers the unity of the essence.
c) We can say: God begets, God breathes; the Son is God from God; because the concrete noun signifies the suppositum; but we can't say: divinity begets, divinity is Father. However, often the established language usage decides. The speech of the believer cannot roam freely like that of the philosopher; "our speech must be according to a definite rule, lest the liberty of speech should generate an impious belief about the thing itself". (August. Civ. Dei X 23.) If anywhere, here, in the mystery of mysteries, Paul's warning is appropriate: "O Timothy, guard what has been entrusted to you, avoiding worldly and empty chatter". (1 Tim 6,20. How much the sealed language usage of the Church decides is a telling example: the Latin Deus triplex is incorrect, but the identical etymon, dreifaltig, threefold is orthodox.)
The believing mind may attempt, in the humble consciousness of its limitations, to illuminate some aspects of the mystery of the Trinity with analogies taken from natural or supernatural life. Of course, it must not forget that in these there will always be more difference than similarity; each one is only good for casting a faint, fading light on one aspect of the mystery. The Greek church fathers used more external analogies: the sun, its light, its ray; in a tree the root, trunk, flower; plant, flower, fragrance; source, stream, estuary; three torches that are ignited from each other (perhaps better: three torches whose flames merge). The newer catechesis and speculation also refer to other analogies: the three dimensions of space, the three moments of time (past, present, future); the three moments of processes: beginning, continuation, end; the three transcendent basic properties: one, true, good; the three basic categories of causality: real, formal and goal-cause (with the last two in relation to the three proofs of God the onto-, nomo-, teleological). The most fruitful analogy, however, is human spiritual life. The Greeks also stayed more on the surface here, as they associated the second divine person, the Word, with the spoken word, the Holy Spirit with the breath. The brilliant mind of Augustine reached the root of spiritual existence, and there he found the purest mirror image of the Trinitarian origins: "The Trinity gives a certain image of itself in the intellect and in the knowledge, which is the offspring of the intellect: the word it says about itself; thirdly, love; and these three are one substance. And the Begotten One is not less, for the intellect knows itself as much as its existence is; and love is not less, for it loves itself as much as it knows itself, and as much as it exists". (August. Trinit. IX 12, 18.)
If we consider any of the aspects that make up the mystery of the Trinity as given from the revelation, we can almost unravel the rest along its thread; a clear sign of how powerful logic prevails in all the relations of the Trinity. For example, if we take this truth as given: there are two fertile origins in God, we can deduce that these origins are immanent, eternal, and substantial, that their product can only be a person and there can only be three persons, two of whom generate the third as one principle.
Finally, the believing mind can reveal the philosophical, theological, and religious significance of the mystery of the Trinity.