Therefore, the Son of God, our Lord, the Word of the Father, is also the son of man; he became the son of a man by a human birth from Mary, a member of the human race (St. Irenaeus).
How else could what is corruptible and mortal in us have been swallowed up in his incorruptibility and immortality, to enable us to receive adoptive sonship?
How was this life revealed? It existed from the beginning, but was not revealed to men, only to angels, who looked upon it and feasted upon it as their own spiritual bread. But what does Scripture say? 'Mankind ate the bread of angels' (St. Augustine).
The Wise men fulfil their desire, and come to the child, the Lord Jesus Christ, the same star going before them. They adore the Word in flesh, the Wisdom in infancy, the Power in weakness, the Lord of majesty in the reality of man (Pope Leo the Great, Sermon 31).
The birthday of the Lord is the birthday of peace: for thus says the Apostle, "He is our peace, who made both one"; because whether we are Jew or Gentile, "through Him we have access in one Spirit to the Father."
Pope Leo the Great
Dearly beloved, today our Saviour is born; let us rejoice. Sadness should have no place on the birthday of life. The fear of death has been swallowed up; life brings us joy with the promise of eternal happiness.
Leo the Great
Let us then joyfully celebrate the coming of our salvation and redemption. Let us celebrate the festive day on which he who is the great and eternal day came from the great and endless day of eternity into our own short day of time (Augustine).
and what is mortal must be clothed, now that death has been conquered, in the Father’s immortality. Then God will reign in us, and we shall enjoy even now the blessings of rebirth and resurrection (Origen, Notebook on Prayer)./10
The kingdom of God, in the words of our Lord and Savior, does not come for all to see; nor shall they say: Behold, here it is, or behold, there it is; but the kingdom of God is within us, for the word of God is very near, in our mouth and in our heart. /1
All this can happen in each one of us, and the last enemy, death, can be destroyed; then Christ will say in us: O death, where is your sting? O hell, where is your victory? And so what is corruptible in us must be clothed with holiness and incorruptibility /9
What have you that you have not received? These are the sacrifices most pleasing to God: mercy, humility, praise, peace, charity. Such as these let us bring and free from fear, we shall await the coming of the judge who will judge the world in equity and the peoples in his truth.