Two Christmas Sermons
Leo I
About the Author: St. Leo I reigned gloriously as the Bishop of Rome from 440 to 461. He is well known for his defence of the two natures of Christ before and during the Council of Chalcedon in the letter nicknamed the “Tome of Leo.” Here we provide two of his sermons preached on the feast of Christmas, which, in characteristic fashion, emphasise the unity and distinction of Christ’s two natures but, more importantly, reflect the significance of the Incarnation for the Christian.
—
Sermon 26, on the Feast of the Nativity VI
On all days and at all times, dearly beloved, does the birth of our Lord and Saviour from the Virgin-mother occur to the thoughts of the faithful, who meditate on divine things, that the mind may be aroused to the acknowledgment of its Maker, and whether it be occupied in the groans of supplication, or in the shouting of praise, or in the offering of sacrifice, may employ its spiritual insight on nothing more frequently and more trustingly than on the fact that God the Son of God, begotten of the co-eternal Father, was also born by a human birth. But this Nativity which is to be adored in heaven and on earth is suggested to us by no day more than this when, with the early light still shedding its rays on nature, there is borne in upon our senses the brightness of this wondrous mystery. For the angel Gabriel’s converse with the astonished Mary and her conception by the Holy Ghost as wondrously promised as believed, seem to recur not only to the memory but to the very eyes. For today the Maker of the world was born of a Virgin’s womb, and He, who made all natures, became Son of her, whom He created. Today the Word of God appeared clothed in flesh, and That which had never been visible to human eyes began to be tangible to our hands as well. Today the shepherds learned from angels’ voices that the Saviour was born in the substance of our flesh and soul; and today the form of the Gospel message was pre-arranged by the leaders of the Lord’s flocks, so that we too may say with the army of the heavenly host: “Glory in the highest to God, and on earth peace to men of good will.”
Although, therefore, that infancy, which the majesty of God’s Son did not disdain, reached mature manhood by the growth of years and, when the triumph of His passion and resurrection was completed, all the actions of humility which were undertaken for us ceased, yet today’s festival renews for us the holy childhood of Jesus born of the Virgin Mary: and in adoring the birth of our Saviour, we find we are celebrating the commencement of our own life. For the birth of Christ is the source of life for Christian folk, and the birthday of the Head is the birthday of the body. Although every individual that is called has his own order, and all the sons of the Church are separated from one another by intervals of time, yet as the entire body of the faithful being born in the font of baptism is crucified with Christ in His passion, raised again in His resurrection, and placed at the Father’s right hand in His ascension, so with Him are they born in this nativity. For any believer in whatever part of the world that is re-born in Christ, quits the old paths of his original nature and passes into a new man by being re-born; and no longer is he reckoned of his earthly father’s stock but among the seed of the Saviour, Who became the Son of man in order that we might have the power to be the sons of God. For unless He came down to us in this humiliation, no one would reach His presence by any merits of his own. Let not earthly wisdom shroud in darkness the hearts of the called on this point, and let not the frailty of earthly thoughts raise itself against the loftiness of God’s grace, for it will soon return to the lowest dust. At the end of the ages is fulfilled that which was ordained from all eternity: and in the presence of realities, when signs and types have ceased, the Law and prophecy have become Truth: and so Abraham is found the father of all nations, and the promised blessing is given to the world in his seed: nor are they only Israelites whom blood and flesh begot, but the whole body of the adopted enter into possession of the heritage prepared for the sons of Faith. Be not disturbed by the cavils of silly questionings, and let not the effects of the Divine word be dissipated by human calculation; we with Abraham believe in God and “waver not through unbelief” but “know most assuredly that what the Lord promised, He is able to perform” (Rm 4:20–21).
The Saviour then, dearly beloved, is born not of fleshly seed but of the Holy Spirit, in such wise that the condemnation of the first transgression did not touch Him. And hence the very greatness of the boon conferred demands of us reverence worthy of its splendour. For, as the blessed Apostle teaches, “we have received not the spirit of this world but the Spirit which is of God, that we may know the things which are given us by God” (1 Cor 2:12): and that Spirit can in no other way be rightly worshipped, except by offering Him that which we received from Him. But in the treasures of the Lord’s bounty what can we find so suitable to the honour of the present feast as the peace, which at the Lord’s nativity was first proclaimed by the angel-choir? For that it is which brings forth the sons of God, the nurse of love and the mother of unity: the rest of the blessed and our eternal home; whose proper work and special office it is to join to God those whom it removes from the world. Whence the Apostle incites us to this good end, in saying, “being justified therefore by faith let us have peace towards God” (Rm 5:1). In which brief sentence are summed up nearly all the commandments; for where true peace is, there can be no lack of virtue. But what is it, dearly beloved, to have peace towards God, except to wish what He bids, and not to wish what He forbids? For if human friendships seek out equality of soul and similarity of desires, and difference of habits can never attain to full harmony, how will he be partaker of divine peace, who is pleased with what displeases God and desires to get delight from what he knows to be offensive to God? That is not the spirit of the sons of God; such wisdom is not acceptable to the noble family of the adopted. That chosen and royal race must live up to the dignity of its regeneration, must love what the Father loves, and in nought disagree with its Maker, lest the Lord should again say: “I have begotten and raised up sons, but they have scorned Me: the ox knows his owner and the ass his master’s crib: but Israel has not known Me and My people has not acknowledged Me” (Is 1:2–3).
The mystery of this boon is great, dearly beloved, and this gift exceeds all gifts that God should call man son, and man should name God Father: for by these terms we perceive and learn the love which reached so great a height. For if in natural progeny and earthly families those who are born of noble parents are lowered by the faults of evil intercourse, and unworthy offspring are put to shame by the very brilliance of their ancestry; to what end will they come who through love of the world do not fear to be outcast from the family of Christ? But if it gains the praise of men that the father’s glory should shine again in their descendants, how much more glorious is it for those who are born of God to regain the brightness of their Maker’s likeness and display in themselves Him Who begot them, as says the Lord: “Let your light so shine before men that they may see your good works and glorify your Father which is in heaven” (Mt 5:16)? We know indeed, as the Apostle John says that “the whole world lies in the evil one” (1 Jn 5:19), and that by the stratagems of the Devil and his angels numberless attempts are made either to frighten man in his struggle upwards by adversity or to spoil him by prosperity, but “greater is He that is in us, than he that is against us,” and they who have peace with God and are always saying to the Father with their whole hearts “your will be done” (Mt 6:10) can be overcome in no battles, can be hurt by no assaults. For accusing ourselves in our confessions and refusing the spirit’s consent to our fleshly lusts, we stir up against us the enmity of him who is the author of sin, but secure a peace with God that nothing can destroy, by accepting His gracious service, in order that we may not only surrender ourselves in obedience to our King but also be united to Him by our free-will. For if we are like-minded, if we wish what He wishes, and disapprove what He disapproves, He will finish all our wars for us, He Who gave the will, will also give the power: so that we may be fellow-workers in His works, and with the exultation of Faith may utter that prophetic song: “the Lord is my light and my salvation: whom shall I fear? The Lord is the defender of my life: of whom shall I be afraid?”
They then who “are born not of blood nor of the will of the flesh nor of the will of man but of God” (Jn 1:13), must offer to the Father the unanimity of peace-loving sons, and all the members of adoption must meet in the First-begotten of the new creation, Who came to do not His own Will but His that sent Him; inasmuch as the Father in His gracious favour has adopted as His heirs not those that are discordant nor those that are unlike Him, but those that are in feeling and affection one. They that are re-modelled after one pattern must have a spirit like the model. The birthday of the Lord is the birthday of peace: for thus says the Apostle, “He is our peace, who made both one;” since whether we be Jew or Gentile, “through Him we have access in one Spirit to the Father.” And it was this in particular that He taught His disciples before the day of His passion which He had of His own free-will fore-ordained, saying, “My peace I give unto you, My peace I leave for you” (Jn 14:27); and lest under the general term the character of His peace should escape notice, He added, “not as the world give I unto you.” The world, He says, has its friendships, and brings many that are apart into loving harmony. There are also minds which are equal in vices, and similarity of desires produces equality of affection. And if any are perchance to be found who are not pleased with what is mean and dishonourable, and who exclude from the terms of their connection unlawful compacts, yet even such if they be either Jews, heretics or heathens, belong not to God’s friendship but to this world’s peace. But the peace of the spiritual and of Catholics coming down from above and leading upwards refuses to hold communion with the lovers of the world, resists all obstacles and flies from pernicious pleasures to true joys, as the Lord says: “Where your treasure is, there will your heart be also” (Mt 6:21): that is, if what you love is below, you will descend to the lowest depth: if what you love is above, you will reach the topmost height: there may the Spirit of peace lead and bring us, whose wishes and feeling are at one, and who are of one mind in faith and hope and in charity: since “as many as are led by the Spirit of God these are sons of God” (Rm 8:14) Who reigns with the Son and Holy Spirit for ever and ever. Amen.
Sermon 27, on the Feast of the Nativity VII
He is a true and devout worshipper, dearly-beloved, of today’s festival who thinks nothing that is either false about the Lord’s Incarnation or unworthy about His Godhead. For it is an equally dangerous evil to deny in Him the reality of our nature and the equality with the Father in glory. When, therefore, we attempt to understand the mystery of Christ’s nativity, wherein He was born of the Virgin-mother, let all the clouds of earthly reasonings be driven far away and the smoke of worldly wisdom be purged from the eyes of illuminated faith: for the authority on which we trust is divine, the teaching which we follow is divine. Inasmuch as whether it be the testimony of the Law, or the oracles of the prophets, or the trumpet of the gospel to which we apply our inward ear, that is true which the blessed John full of the Holy Spirit uttered with his voice of thunder: “in the beginning was the Word: and the Word was with God, and the Word was God. The same was in the beginning with God. All things were made through Him, and without Him was nothing made.” And similarly is it true what the same preacher added: “the Word became flesh and dwelt in us: and we beheld His glory, the glory as of the only-begotten of the Father.” Therefore in both natures it is the same Son of God taking what is ours and not losing what is His own; renewing man in His manhood, but enduring unchangeable in Himself. For the Godhead which is His in common with the Father underwent no loss of omnipotence, nor did the “form of a slave” do despite to the “form of God,” because the supreme and eternal Essence, which lowered Itself for the salvation of mankind, transferred us into Its glory, but did not cease to be what It was. And hence when the Only-begotten of God confesses Himself less than the Father, and yet calls Himself equal with Him, He demonstrates the reality of both forms in Himself: so that the inequality proves the human nature, and the equality the Divine.
The bodily Nativity therefore of the Son of God took nothing from and added nothing to His Majesty because His unchangeable substance could be neither diminished nor increased. For that “the Word became flesh” does not signify that the nature of God was changed into flesh, but that the Word took the flesh into the unity of His Person: and therein undoubtedly the whole man was received, with which within the Virgin’s womb fecundated by the Holy Spirit, whose virginity was destined never to be lost, the Son of God was so inseparably united that He who was born without time of the Father’s essence was Himself in time born of the Virgin’s womb. For we could not otherwise be released from the chains of eternal death but by Him becoming humble in our nature, Who remained Almighty in His own. And so our Lord Jesus Christ, being at birth true man though He never ceased to be true God, made in Himself the beginning of a new creation, and in the “form” of His birth started the spiritual life of mankind afresh, that to abolish the taint of our birth according to the flesh there might be a possibility of regeneration without our sinful seed for those of whom it is said, “Who were born not of blood, nor of the will of the flesh, nor of the will of man, but of God” (Jn 1:13). What mind can grasp this mystery, what tongue can express this gracious act? Sinfulness returns to guiltlessness and the old nature becomes new; strangers receive adoption and outsiders enter upon an inheritance. The ungodly begin to be righteous, the miserly benevolent, the incontinent chaste, the earthly heavenly. And whence comes this change, save by the right hand of the Most High? For the Son of God came to “destroy the works of the devil” (1 Jn 3:8), and has so united Himself with us and us with Him that the descent of God to man’s estate became the exaltation of man to God’s.
But in this mercifulness of God, dearly beloved, the greatness of which towards us we cannot explain, Christians must be extremely careful lest they be caught again in the devil’s wiles and once more entangled in the errors which they have renounced. For the old enemy does not cease to “transform himself into an angel of light” (2 Cor 11:14), and spread everywhere the snares of his deceptions, and make every effort to corrupt the faith of believers. He knows whom to ply with the zest of greed, whom to assail with the allurements of the belly, before whom to set the attractions of self-indulgence, in whom to instil the poison of jealousy: he knows whom to overwhelm with grief, whom to cheat with joy, whom to surprise with fear, whom to bewilder with wonderment: there is no one whose habits he does not sift, whose cares he does not winnow, whose affections he does not pry into: and wherever he sees a man most absorbed in occupation, there he seeks opportunity to injure him. Moreover he has many whom he has bound still more tightly because they are suited for his designs, that he may use their abilities and tongues to deceive others. Through them are guaranteed the healing of sicknesses, the prognosticating of future events, the appeasing of demons and the driving away of apparitions. They also are to be added who falsely allege that the entire condition of human life depends on the influences of the stars, and that that which is really either the divine will or ours rests with the unchangeable fates. And yet, in order to do still greater harm, they promise that they can be changed if supplication is made to those constellations which are adverse. And thus their ungodly fabrications destroy themselves; for if their predictions are not reliable, the fates are not to be feared: if they are, the stars are not to be venerated.
From such a system of teaching proceeds also the ungodly practice of certain foolish folk who worship the sun as it rises at the beginning of daylight from elevated positions: even some Christians think it is so proper to do this that, before entering the blessed Apostle Peter’s basilica, which is dedicated to the One Living and true God, when they have mounted the steps which lead to the raised platform , they turn round and bow themselves towards the rising sun and with bent neck do homage to its brilliant orb. We are full of grief and vexation that this should happen, which is partly due to the fault of ignorance and partly to the spirit of heathenism: because although some of them do perhaps worship the Creator of that fair light rather than the Light itself, which is His creature, yet we must abstain even from the appearance of this observance: for if one who has abandoned the worship of gods, finds it in our own worship, will he not hark back again to this fragment of his old superstition, as if it were allowable, when he sees it to be common both to Christians and to infidels?
This objectionable practice must be given up therefore by the faithful, and the honour due to God alone must not be mixed up with those men’s rites who serve their fellow-creatures. For the divine Scripture says: “You shall worship the Lord your God, and Him only shall you serve” (Mt 4:10). And the blessed Job, “a man without complaint,” as the Lord says, “and one that eschews every evil” (Jb 1:8), said, “Have I seen the sun when it shone or the moon walking brightly, and my heart has rejoiced in secret, and I have kissed my hand: what is my great iniquity and denial against the most High God?” But what is the sun or what is the moon but elements of visible creation and material light: one of which is of greater brightness and the other of lesser light? For as it is now day time and now night time, so the Creator has constituted various kinds of luminaries, although even before they were made there had been days without the sun and nights without the moon. But these were fashioned to serve in making man, that he who is an animal endowed with reason might be sure of the distinction of the months, the recurrence of the year, and the variety of the seasons, since through the unequal length of the various periods, and the clear indications given by the changes in its risings, the sun closes the year and the moon renews the months. For on the fourth day, as we read, God said: “Let there be lights in the firmament of the heaven, and let them shine upon the earth, and let them divide between day and night, and let them be for signs and for seasons, and for days and years, and let them be in the firmament of heaven that they may shine upon earth.”
Awake, O man, and recognize the dignity of your nature. Recollect you were made in the image of God, which although it was corrupted in Adam, was yet re-fashioned in Christ. Use visible creatures as they should be used, as you use earth, sea, sky, air, springs, and rivers: and whatever in them is fair and wondrous, ascribe to the praise and glory of the Maker. Be not subject to that light wherein birds and serpents, beasts and cattle, flies and worms delight. Confine the material light to your bodily senses, and with all your mental powers embrace that “true light which lights every man that comes into this world” (Jn 1:9), and of which the prophet says, “Come unto Him and be enlightened, and your faces shall not blush.” For if we “are a temple of God, and the Spirit of God dwells in” us (1 Cor 3:16), what every one of the faithful has in his own heart is more than what he wonders at in heaven. And so, dearly beloved, we do not bid or advise you to despise God’s works or to think there is anything opposed to your Faith in what the good God has made good, but to use every kind of creature and the whole furniture of this world reasonably and moderately: for as the Apostle says, “the things which are seen are temporal: but the things which are not seen are eternal” (2 Cor 4:18). Hence because we are born for the present and reborn for the future, let us not give ourselves up to temporal goods, but to eternal: and in order that we may behold our hope nearer, let us think on what the Divine Grace has bestowed on our nature on the very occasion when we celebrate the mystery of the Lord’s birthday. Let us hear the Apostle, saying: “for you are dead, and your life is hid with Christ in God. But when Christ, who is your life, shall appear, then shall you also appear with Him in glory” (Col 3:3–4): who lives and reigns with the Father and the Holy Ghost for ever and ever. Amen.
—
From Sermons, trans. Charles Lett Feltoe, Nicene and Post-Nicene Fathers, series 2, vol. 12.