Sermon 21 on the Nativity of Christ

by St. Leo the Great

Our father among the saints, Leo the Great was the bishop of Rome during difficult times. He was an eminent scholar of Scripture and rhetoric. During an invasion by Attila the Hun, St. Leo met him outside the gates of Rome. After some short words, to everyone’s surprise, Attila turned and left. Three years later, during an invasion by Genseric the Vandal, St. Leo’s intercession again saved the Eternal City from destruction.

All share in the joy of Christmas

Our Savior, dearly-beloved, was born today (Christmas day): let us be glad. For there is no proper place for sadness, when we keep the birthday of the Life, which destroys the fear of mortality and brings to us the joy of promised eternity. No one is kept from sharing in this happiness. There is for all one common measure of joy, because as our Lord, the destroyer of sin and death, finds none free from the charge, so He comes to free us all. Let the saint exult in that he draws near to victory. Let the sinner be glad in that he is invited to being pardon. Let the gentile take courage in that he is called to life. For the Son of God in the fullness of time which the inscrutable depth of the Divine counsel has determined, has taken on him the nature of man, thereby to reconcile it to its Author: in order that the inventor of death, the devil, might be conquered. And in this conflict undertaken for us, the fight was fought on great and wondrous principles of fairness.

Truly foreign to this nativity is that which we read of all others:

“no one is clean from stain, not even the infant who has lived but one day upon earth.”

Nothing therefore of the lust of the flesh has passed into that peerless nativity, nothing of the law of sin has entered. A royal Virgin of the stem of David is chosen, to be impregnated with the sacred seed and to conceive the Divinely-human offspring in mind first and then in body: she learns from the angel that what is to be wrought in her is of the Holy Ghost. Nor does she believe it loss of honor that she is soon to be the Mother of God. Her implicit faith is confirmed also by the attesting of a miracle, and Elizabeth receives unexpected fertility: in order that there might be no doubt that He who had given conception to the barren, would give it even to a virgin.

Therefore the Word of God, Himself God, the Son of God who “in the beginning with God,” through whom “all things were made” and “without” whom “was nothing made,” with the purpose of delivering man from eternal death, became man: The true God and true man were combined to form one Lord, so that, as suited the needs of our case, one and the same Mediator between God and men, the Man Christ Jesus, could both die with the one and rise again with the other.

Rightly therefore did the birth of our Salvation impart no corruption to the Virgin’s purity, because the bearing of the Truth was the keeping of honor. Such then beloved was the nativity which became the Power of God and the Wisdom of God even Christ, whereby He might be one with us in manhood and surpass us in Godhead. For unless He were true God, He would not bring us a remedy: unless He were true Man, He would not give us an example. Therefore the exulting angel’s song when the Lord was born is this,

“Glory to God in the Highest,”

and their message,

“peace on earth to men of good will.”

For they see that the heavenly Jerusalem is being built up out of all the nations of the world: and over that indescribable work of the Divine love how ought the humbleness of men to rejoice, when the joy of the lofty angels is so great?

Christians then must live worthily of Christ their Head.

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,”

had pity on us: and

“when we were dead in sins, has quickened us together in Christ,”

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. Remember 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: and do not subject yourself once more to the devil; 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.

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