When speaking of Holy Communion in the
Way of Perfection (Ch. 34), St. Teresa of Avila said: "This is something that is happening now." In the Christmas liturgy, the Church teaches us that the birth of Jesus is not just something that happened two thousand years ago in Bethlehem. Our Lord's nativity is something that is happening
now, especially through participation in the Mass, and in the liturgy of the hours which radiate from it. In
The Church's Year of Grace, Fr. Pius Parsch explains that this is why the word
hodie or "today" is repeated again and again in the Christmas Masses and offices. The Invitatory for December 24 proclaims: "
Today you will know the Lord is coming, and in the morning you will see His glory." We are called to Midnight Mass with this antiphon: "The Lord said to me: You are my Son.
Today I have begotten you." At Morning Prayer (Lauds) we say: "
Today the Savior of the world is born for you." The antiphon for the Canticle of Mary closes the most joyful of feasts with the words: "Christ the Lord is born
today;
today the Savior has appeared...."
Dom Gueranger comments: "...This
today is the Day of eternity, a Day which has neither morning nor evening, neither rising nor setting." (
The Liturgical Year, Vol. II) Through the sacraments, especially through the Eucharistic sacrifice, we already belong to that Day of eternity. At Christmas Mass, we truly and mystically assist at His birth.
Christmas is celebrated with three Masses. At Midnight Mass, the angels marvel at the Word made flesh, born of the Virgin Mary. The Dawn Mass sees the shepherds hurrying to the stable to adore the newborn King. The third Mass celebrates the Eternal Word, Who is the Son begotten of the Father from all eternity.
Jesus, Who is born tonight, is born thrice. He is born of the Blessed Virgin, in the stable of Bethlehem; he is born by grace, in the hearts of the shepherds, who are the first fruits of the Christian Church; and He is born from all eternity in the bosom of the Father, in the brightness of the saints: to this triple birth, therefore, let there be the homage of a triple Sacrifice! (Dom Gueranger, The Liturgical Year, Vol. II)