I too will proclaim the greatness of this day: the Immaterial become incarnate, the Word is made flesh, the invisible makes itself seen, the intangible can be touched, the timeless has a beginning, the Son of God becomes the Son of Man, Jesus Christ, always the same, yesterday, today and forever. . . This is the solemnity we are celebrating today: the arrival of God among us, so that we might go to God, or more precisely, return to Him. . . Revere the nativity which releases you from the chains of evil. Honor this tiny Bethlehem which restores Paradise to you. Venerate this crib; because of it you who were deprived of meaning (logos) are fed by the divine Meaning, the divine Logos Himself.
St. Gregory the Theologian
Oration 38, For Christmas (Patrologia Graeca, 36, 664-5) found in The Roots of Christian Mysticism by Olivier Clement, New City Press, NY, p. 41, 330-390
Through their prayers for, and alms on behalf of, the deceased, Christians display the relationship between this world and the world to come.
The Church in this world and the Church in the other world are one and the same the one Body of Christ one the Church Militant and the other the Church Triumphant. It can be compared to a tree which has roots beneath the earth comprise as well as branches above the earth, but both the roots and the branches comprise one organism. This metaphor also illustrates how we on earth who comprise the Church Militant can receive help from the saints and the righteous ones in the Heavenly Church Triumphant. Saint Athanasios says: 'As it happens with wine inside a barrel which, when the vineyard blooms in the field, senses it and the wine itself blossoms together with it, so it is with the souls of sinners. They receive some relief from the Bloodless Sacrifice offered for them and from charity' performed for their repose.
Saint Ephrem the Syrian cites that same example with wine and the vineyard and concludes: 'And so, when there exists such mutual sensitivity even among plants, is not the prayer and sacrifice felt even more for the departed ones?'
'[At the Eucharist] the bread itself and the wine are changed into God's body and blood. But if you enquire how this happens, it is enough for you to learn that it was through the Holy Spirit, just as the Lord took on Himself flesh that subsisted in Him and was born of the Holy Mother of God through the Spirit. And we know nothing further save that the Word of God is true and energises and is omnipotent, but the manner of this cannot be searched out. But one can put it well thus, that just as in nature the bread by the eating and the wine by the drinking are changed into the body and blood of the eater and drinker, and do not become a different body from the former one, so the bread of the table and the wine and water are supernaturally changed by the invocation and presence of the Holy Spirit into the body and blood of Christ, and are not two but one and the same.'
St. John of Damascus
An Exact Exposition of the Orthodox Faith, Book 4: Chapter 13; Eerdmans pg. 83, 8th century
Pray, my brethren, to the Mother of God when the storm of enmity and malice bursts forth in your house. She, Who is all-merciful and all-powerful, can easily pacify the hearts of men. Peace and love proceed from the one God, as from their Source, and Our Lady - in God, as the Mother of Christ the Peace, is zealous, and prays for the peace of the whole world, and above all - of all Christians.
St. John of Kronstadt
My Life in Christ: Part 1, Holy Trinity Monastery pg. 179, 19th century
The tribes of Judah and Levi were united by a fusion of their lines of descent, and that is why Matthew assigns Christ's family to the tribe of Judah. And the Apostle says, 'for our Lord has sprung out of Judah' (Heb. 7:14).
St. Ambrose of Milan
Seven Exegetical Works, 4th Century
Thus, from the tribe of Levi may be counted a heritage that is priestly and filled with holiness, while from the tribe of Judah - to which David and Solomon and the rest of the kings belonged - there shines forth the splendor of a royal descent. And so, by the testimony of the Scriptures, Christ is shown to be at once both king and priest.
St. Ambrose of Milan
Seven Exegetical Works, 4th Century
The Lord has given us a sign 'as deep as Sheol and as high as heaven', such as we should not have dared to hope for. How could we have expected to see a Virgin with Child, and to see in this Child a 'God with us' (Isaiah 7: 11 & 14) Who would descend into the depths of the earth to seek for the lost sheep, meaning the creature He had fashioned, and then ascend again to present to His Father humanity thus regained?
Irenaeus of Lyons
Against Heresies, III, 19.3 (SC 211, p. 380), 130-208