It simply follows from unity of Essence...
No, it does not, though I understand your displaced thought process of deduction. But that's reasoning, not intuiting. And I'm referring to the actual doctrinal position of the Orthodox Church, which does NOT say what you are saying.
Perichoresis is the inter-penetrating conjoinedness for the alleged three hypostases in the Trinity doctrine, with the Hypostatic Union being the Christological hypostasization of the pre-Incarnate Son taking on humanity/flesh in the cosmos.
This is not opinion, this is fact relative to doctrine. Hence my observations that were valid, even if presumed crude and inappropriate. Neither the Father nor Holy Spirit hypostasized in an Incarnation to become flesh; so we cannot be directly one flesh with either of them, for they have never been flesh as was/is the Son.
THAT's why I was referring to the sexual similes, for marriage is a fleshly type for the anti-type of our ultimate everlasting joining as one spiritual flesh with the Son in Hypostatic Union. It requires flesh to flesh for prosopoa, which each "have" the others' hypostasis. That isn't applicable to the Father and Holy Spirit, as neither became flesh.
So we're not one flesh with (betrothed now, and later married to) the Father or Holy Spirit. Marriage is Hypostatic Union, just as you pointed out earlier and then vacated that for this mistaken deduction of reason that is incorrect Orthodox doctrine. We are not married to the Father or Holy Spirit.
You're interposing Hypostatic Union for perichoresis. The latter is for the alleged joining of homoouisos hypostases; the former is for hypostasization of a singular divine hypostasis to take on humanity, and thus be constitutionally compatible with humanity to become one flesh in marriage; the joined prosopa each "having" the other's hypostasis in union.
To apply Hypostatic Union makes the Father and Holy Spirit Incarnate as flesh, and part of the marriage intimacy of physically joined hypostases via fleshly prosopa. Now you should understand why it is repulsive blasphemy to say what you did.
In the Trinity, the alleged multiple hypostases are interpenetrating and allegedly indivisible. That's what you're referring to, and accurately so according to your doctrine.
If the three Hypostases are one in essence, they must be co-inherent one with another...
Right. That's perichoresis, not Hypostatic Union. The latter is Christological Incarnation by taking on humanity for marriage unity with Believers as the Bride.
You think that Father, Son and Holy Spirit are One Person/Hypostasis,
No, I utterly and absolutely intuitively KNOW they're a singular unquantified hypostasis. God's Rhema IS His (singular) hypostasis, and the Logos is the thrusting of that Rhema sword. If you (and the Patristics) understood phenomena and noumena, and timelessness versus time, you (and they) would understand the truth of God's transcendence and immanence instead of combining it all and misrepresenting God as quantified hypostases by intellect instead of intuition.
Having encounters with a prosopon (and the Fathers/Saints NEVER encountered a bare prosoponless hypostasis, for that's not possible) is sakhal, the pride of life by measuring and calculating to know the reason. They counted God one prosopon at a time and deduced multiple hypostases for those prosopa.
The Sabellians, Monarchians, Patripassians, and others who were modalistic (including modern Oneness proponents) were as close as the Trinity in many way, but from the perspective of retaining the singular hypostasis at the expenses of other vital truth in the Trinity. The same is true for the Arians, Unitarians, and others by degree. EVERYBODY was wrong, including the belabored and tedious Patristic formulaic that results inevitably in three ousios if there are multiple sentient centers of conscious volition for the alleged individuated hypostases.
As I understood the original formulaic, a hypostasis was NOT the personal center for conscious volition, but shared the one mind and will within the ousia. THAT is a Monotheistic Trinity with multiple hypostases, and I applaud any professing Trinitarian who holds that position (which in one modern parlance would be Anti-Social contrasted to Social).
I love you, my precious Brother, but this isn't an area of contention over number of hypostases. You are mistakenly applying the Hypostatic Union to perichoresis, which is a misapplication within your own doctrine, not a difference between yours and mine.
so that when we become one in Christ Who has elevated humanity in His human nature, by joining with His Divine Person [Hypostasis] in Baptism into Christ, then by your standards, how can you deny that we are thereby united hypostatically with the Father and with the Son?
We ARE. IN Christ, who is phenomenally distinct from the inherent phenomena that is the Father. But I'm not married to my Heavenly Father (and the Holy Spirit).
You don't understand phenomena and noumena. Nobody does. The Patristics didn't. And neither did the anathemas or the Sophists or the Gnostics or the various Mesapotamianists or the Far-Eastern Mysticists or the Hermeticists or the Theurgists or the Theosophists or the other Esotericists, etc. Nor do modern Phenomenologists, etc. But each of them has pursued various missing aspects that the Trinity can't account for in phenomenal existence and noumenal existence. I've reconciled it ALL. You just can't and won't listen.
It only comes by pure intuition, renewed in the Spirit of the mind with NO intellectualizing from personal "spiritual" encounters that are for edification, not doctrinal revelation. Wrong tree if it's from something seen with the physical eyes as manifestation, even in deep theosis. That's functional Modalism, and Father, Son, and Holy Spirit aren't merely modes of manifestation.
My own understanding on this is shifting, btw... I am beginning to ask if our union in Christ is with His [OBEDIENT to the Father] Risen Human Nature, rather than with His Divine Person [Hypostasis]...
It's both. The physis because it's underlied by the hypostasis which determines its quality AS existence. THAT's grace, which everyone misrepresents. Grace is God's nature influencing and changing our own physis into His. That's accomplished by us being hypostatically united with Christ's ascended hypostasis and us partaking of God's inherent divine nature through hypostatic union with Jesus. THAT's what the Hypostatic Union at the Incarnation was FOR!!
No need for more false binaries as dichotomies.
But the perichoretic nature of that union being parallel with the perichoresis of the Holy Trinity, where co-inherence of hypostases is a given, is solidly Orthodox...
Okay. But you have grossly misspoken on Hypostatic Union and perichoresis, interposing them.
Indeed, Christ IN us is Perichoretic... And we IN Christ is as well, and Christ IN the Father, and the Father IN Christ, and Christ IN the Holy Spirit, and on and on...
Right. But it must be expressed correctly. God didn't stutter by His Logos.
And indeed, in the Communion of the Holy Spirit on earth, we IN one another, and having one another IN us...
YES. Perichoretically. In chorus. Choreographed together. NOT in Hypostatic Union. We aren't betrothed/married to each other, either. Only to the Bridegroom, who is NOT the Father or Holy Spirit. It's actually the noumenological Holy Spirit who os the perichoretic for the phenomenological and noumenological Logos/Son and phenomenological Father, joining us all. No need for an amiguous displaced perichoretic alone, just as there is no ousia for God except the hypostasis/es itself/themselves (forward slashes for you and the Trinity).
This is the "coin of the realm" of the Love of God that the Brethren have for one another, and can be seen in the Biblical Commandment that we "...Love our neighbor AS OURSELF..." Zizoulas calls this the "Communion of Love", and it is presaged in the Psalms where David writes "how good it is for the Tribes to live together in harmony..." [my bad memory of what I read]...
Right. But you displaced perichoresis for Hypostatic Union. Not good.
Indeed, this personal inter-communion of inherence in one another is the very basis for which peace and good will can subsist among men upon this earth... Its absence is the hallmark of sociopathology, which is all about ME-ME and those who affirm ME...
Arsenios
Agreed. But you egregiously misrepresented Hypostatic Union.
And God is Uni-Hypostatic and Multi-Phenomenal, not Multi-Hypostatic and Uni-Phenomenal.
EVERYONE has been subtly wrong for two millennia and declaring each other anathema from varying perspectives. The Orthodox Trinity and some form of Modalism are closest, but all are still incomplete and erroneous by degree.
Giving alleged multiple hypostases individuated eternal sentient volitional consciousness is Tritheism, though. BAD.