Tuesday, December 23, 2025

"Having obtained a share in the birth of Christ let us renounce the works of the flesh." ~ The Ancient Church Fathers on the Nativity of Christ

Fresco portrait of Pope Saint Leo the Great (enhanced) from the Church of Santa Maria
Antiqua in Rome, dated to the early 8th century—about 350 years after his death.

As explained in a previous post, the Nativity of Jesus has been celebrated by Christians on December 25 since antiquity. The feast of the Nativity has always been an opportunity for homiletic fireworks on a grand scale, and the Fathers of the Church took full advantage of the sacred day to wax eloquent.

In keeping with this theme, here are a few excerpts from some of the earliest extant homilies delivered by various Church Fathers to commemorate the birth of Jesus Christ, Son of the Living God.

The first comes from Pope Liberius who reigned in the mid-4th century AD. You may remember from a previous post, that Liberius was ejected from the papal see by the Roman Emperor Constantius II, son of Constantine the Great, for the crime of being insufficiently tolerant of Arianism. 

The excerpt below from Liberius was recorded by Saint Ambrose in a letter to his sister Marcellina. Pope Liberius had delivered this sermon on the occasion of Marcellina taking the veil as a consecrated virgin—an event which apparently took place on Christmas day, likely in AD 353 or there abouts. In the sermon, Liberius leans heavily into the nature of the incarnation of Christ, and one can clearly discern the familiar echoes of the Nicene Creed and its refutation of Arianism: 

"Today, indeed, He was born after the manner of men, of a Virgin, but was begotten of the Father before all things, resembling His mother in body, His Father in power. Only-begotten on earth, and Only-begotten in heaven. God of God, born of a Virgin, Righteousness from the Father, Power from the Mighty One, Light of Light, not unequal to His Father; nor separated in power, not confused by extension of the Word or enlargement as though mingled with the Father, but distinguished from the Father by virtue of His generation." [Pope Liberius (AD 352-366), as quoted by St. Ambrose in a letter to his sister Marcellina]

This next excerpt is from Saint Ephraim the Syrian who flourished the mid-4th century. Ephraim is known particularly for his hymns, and the excerpt below is taken from one of the score or so that he wrote for the celebration of the Nativity of Christ. Interestingly, this hymn seems to indicate that the birth of Christ happened at about the same time as the winter solstice (December 21) when "He came forth from the womb in this month in which the sun gives longer light."  

"At the birth of the Son the king was enrolling all men for the tribute-money, that they might be debtors to Him: the King came forth to us Who blotted out our bills, and wrote another bill in His own Name that He might be our debtor. The sun gave longer light, and foreshadowed the mystery by the degrees which it had gone up. It was twelve days since it had gone up, and today is the thirteenth day: a type exact of the Son's birth and of His Twelve.

Moses shut up a lamb in the month Nisan on the tenth day; a type this of the Son that came into the womb and shut Himself up therein on the tenth day. He came forth from the womb in this month in which the sun gives longer light.

The darkness was overcome, that it might proclaim that Satan was overcome; and the sun gave longer light, that it might triumph, because the First-born was victorious. Along with the darkness the dark one was overcome, and with the greater light our Light conquered!" [Saint Ephraim the Syrian, Fourth Hymn on the Nativity of Christ, written prior to AD 373]

Scenes from the Nativity and infancy of Christ from the Ivory throne
of Maximianus, Archbishop of Ravenna, early 6th century AD.

This next excerpt is from the aforementioned Saint Ambrose of Milan and may be traced back to AD 377, a mere three years after he had been made bishop by acclamation even prior to his baptism, having been baptized and ordained bishop on the same day. This tract demonstrates that he had successfully made the  transition from able Roman provincial administrator, to spiritual father of a major metropolitan see, while retaining his well-known and appreciated humility: 

"Therefore Christ became a little one, He became a child, so that you might become a perfect man. H was wrapped in swaddling bands, so that you might be freed from the bonds of death. He lay in a manger so that you might be raised to the altar. He dwelt on earth so that you might live among the stars. There was no room for him at the inn, this was so that you might have many rooms in the heavenly mansions. 'He who was rich made himself poor for your sake, so that you might be rich.' (1 Cor 8:9). The Lord's poverty is my inheritance and His weakness is my strength. For Himself He preferred poverty and want, so that for others He might have abundant wealth. It is I who am washed by those tears that He shed as a crying infant, it is my sins that are wiped away by those tears. [St. Ambrose of Milan, from Commentary of Saint Ambrose on the Gospel of Luke, Book II, Chapter 41]

Finally, given the regnal title of the reigning pontiff, we present a passage taken from a sermon given by the original, Pope Saint Leo the Great about 75 years after Saint Ambrose. In this excerpt, Leo wraps up his Christmas sermon with an admonition to his flock to adhere to the moral commands of Christ and resist the urge to live according to the desires of the flesh—a fair warning to all Christians, ancient and modern alike:

"Let us then, dearly beloved, give thanks to God the Father, through His Son, in the Holy Spirit, 'Who for His great mercy, wherewith He has loved us, has had pity on us: and when we were dead in sins, has quickened us together in Christ' (Ephesians 2:4-5), that we might be in Him a new creation and a new production. Let us put off then the old man with his deeds: and having obtained a share in the birth of Christ let us renounce the works of the flesh. Christian, acknowledge your dignity, and becoming a partner in the Divine nature, refuse to return to the old baseness by degenerate conduct. Remember the Head and the Body of which you are a member. Recollect that you were rescued from the power of darkness and brought out into God's light and kingdom. By the mystery of Baptism you were made the temple of the Holy Ghost: do not put such a denizen to flight from you by base acts, and subject yourself once more to the devil's thralldom: because your purchase money is the blood of Christ, because He shall judge you in truth Who ransomed you in mercy, who with the Father and the Holy Spirit reigns for ever and ever. Amen." [Pope Saint Leo the Great, Sermon 21, mid-5th century AD]