+ St. Thalassios the Libyan, “On Love, Self-Control and Life in Accordance with the Intellect,” 3.28, The Philokalia: The Complete Text (Vol. 2)
Let us sing the praises of the Cross, made from three kinds of wood* as a figure of the Trinity; and, venerating it with fear, let us raise our cry, as we bless, praise and exalt Christ above all for ever.
* Cypress, pine and cedar: cf. Isa 60:13 (Sept.).
— Lenten Triodion (in English, “Lenten Triodion Supplement”), Tuesday in the Fourth Week of Great Lent, Troparion from the Matins Canon, Ode 8.
“These eight passions should be destroyed as follows: gluttony by self-control; unchastity by desire for God and longing for the blessings held in store; avarice by compassion for the poor; anger by goodwill and love for all men; worldly dejection by spiritual joy; listlessness by patience, perseverance and offering thanks to God; self-esteem by doing good in secret and by praying constantly with a contrite heart; and pride by not judging or despising anyone in the manner of the boastful Pharisee (cf. Luke 18 : 11–12), and by considering oneself the least of all men. When the intellect has been freed in this way from the passions we have described and been raised up to God, it will henceforth live the life of blessedness, receiving the pledge of the Holy Spirit (cf. 2 Cor. 1 : 22). And when it departs this life, dispassionate and full of true knowledge, it will stand before the light of the Holy Trinity and with the divine angels will shine in glory through all eternity.”
+ St. John Damascene, “On the Virtues and the Vices” from The Philokalia: The Complete Text (Vol. 2)
But while God is the Indivisible Trinity, divisions occur in mankind constantly… The Father, the Son and the Holy Spirit have common thought, common will, common actions. What the Father desires, the Son also desires, and the Holy Spirit also desires. Whatever the Son loves, so do the Father and the Holy Spirit also love. Whatever is pleasing to the Holy Spirit, is pleasing to the Father and Son. Their actions are also common among them, all act in conjunction and in accord.
This is not so with man. We are in constant disagreement, we have differing desires. Even a small child expresses his own wishes, willfulness, disobedience to his loving parents. As he grows older, he separates from their more, and so often in our day becomes completely alienated from them. People simply don’t share identical opinions, on the contrary, there are perpetual divisions in all things, quarrels and conflicts between individuals, wars between nations.
Adam and Eve, before their Fall, were in full accord and of common spirit with one another at all times. Having sinned, alienation was immediately sensed. Justifying himself before God, Adam blamed Eve. Their sin divided them and continues to divide all of mankind. Emancipated from sin, we approach God, and, filled with His grace, we sense our unity with the rest of mankind. Such unity is very imperfect and lacking, since in each person some portion of sin remains. The closer we approach God, the closer we approach each other, just as the closer rays of light are to each other, the closer they are to the Sun. In the coming Kingdom of God there will be unity, mutual love and concord. The Holy Trinity remains eternally unchanging, all-perfect, united in essence and indivisible.
The One, Indivisible Trinity ever remains the Trinity. The Father always remains the Father, the Son remains the Son, the Holy Spirit remains the Holy Spirit. Besides Their personal Properties, They all share all in common and in unity. That is why the Holy Trinity is One God.
+ St. John Maximovich of Shanghai and San Francisco
The first error of the Westerners was to compel the faithful to fast on Saturdays. (I mention this seemingly small point because the least departure from Tradition can lead to a scorning of every dogma of our Faith.) Next, they convinced the faithful to despise the marriage of priests, thereby sowing in their souls the seeds of the Manichean heresy. Likewise, they persuaded them that all who had been chrismated by priests had to be anointed again by bishops. In this way, they hoped to show that Chrismation by priests had no value, thereby ridiculing this divine and supernatural Christian Mystery. From whence comes this law forbidding priests to anoint with Holy Chrism? From what lawgiver, Apostle, Father, or Synod? For, if a priest cannot chrismate the newly-baptised, then surely neither can he baptize. Or, how can a priest consecrate the Body and Blood of Christ our Lord in the Divine Liturgy if, at the same time, he cannot chrismate with Holy Chrism? If this grace then, is taken from the priests, the episcopal rank is diminished, for the bishop stands at the head of the choir of priests. But the impious Westerners did not stop their lawlessness even here.
They attempted by their false opinions and distorted words to ruin the holy and sacred Nicene Symbol of Faith — which by both synodal and universal decisions possesses invincible power — by adding to it that the Holy Spirit proceeds not only from the Father, as the Symbol declares, but from the Son also. Until now, no one has ever heard even a heretic pronounce such a teaching. What Christian can accept the introduction of two sources into the Holy Trinity; that is, that the Father is one source of the Son and the Holy Spirit, and that the Son is another source of the Holy Spirit, thereby transforming the monarchy of the Holy Trinity into a dual divinity?
+ St. Photios the Great, Except from The Encyclical Letter of Saint Photius (867)
“But the pious confession of the believer is that, with a view to our salvation, . . . the Creator of all things incorporated with Himself a rational soul and a sensible body from the all-holy Mary, ever-virgin, by an undefiled conception, without conversion, and was made man in nature, but separate from wickedness: the same was perfect God, and the same was perfect man; the same was in nature at once perfect God and man.”
— St. Hippolytus of Rome, Against Beron and Helix, Frag VIII, 210 AD