O Jesus, through the Immaculate Heart of Mary, I offer you my prayers, works, joys and sufferings of this day, for the intentions of your sacred heart, in union with the holy sacrifice of the Mass throughout the world, for the remission of my sins, for the intentions of my family and friends, and in particular for the intentions of the Holy Father. Amen.

Our Lady of Guadalupe, Pray for Us.

In the name of the Father, and of the Son, and the Holy Spirit. Amen.

God, come to my assistance.
— Lord, make haste to help me.

Glory to the Father, and to the Son, and to the Holy Spirit:
— as it was in the beginning, is now, and will be forever. Amen.

Responsory

Come, let us go up to the mountain of the Lord,
to the house of the God of Jacob.
— He will teach us his ways, and we will walk in his paths.

The Messiah, who is called the Christ, is coming.
When he comes, he will teach us everything.
— He will teach us his ways, and we will walk in his paths.

From a pastoral letter by Saint Charles Borromeo, bishop
The season of Advent

Beloved, now is the acceptable time spoken of by the Spirit, the day of salvation, peace and reconciliation: the great season of Advent. This is the time eagerly awaited by the patriarchs and prophets, the time that holy Simeon rejoiced at last to see. This is the season that the Church has always celebrated with special solemnity. We too should always observe it with faith and love, offering praise and thanksgiving to the Father for the mercy and love he has shown us in this mystery. In his infinite love for us, though we were sinners, he sent his only Son to free us from the tyranny of Satan, to summon us to heaven, to welcome us into its innermost recesses, to show us truth itself, to train us in right conduct, to plant within us the seeds of virtue, to enrich us with the treasures of his grace, and to make us children of God and heirs of eternal life.

Each year, as the Church recalls this mystery, she urges us to renew the memory of the great love God has shown us. This holy season teaches us that Christ’s coming was not only for the benefit of his contemporaries; his power has still to be communicated to us all. We shall share his power, if, through holy faith and the sacraments, we willingly accept the grace Christ earned for us, and live by that grace and in obedience to Christ.

The Church asks us to understand that Christ, who came once in the flesh, is prepared to come again. When we remove all obstacles to his presence he will come, at any hour and moment, to dwell spiritually in our hearts, bringing with him the riches of his grace.

In her concern for our salvation, our loving mother the Church uses this holy season to teach us through hymns, canticles and other forms of expression, of voice or ritual, used by the Holy Spirit. She shows us how grateful we should be for so great a blessing, and how to gain its benefit: our hearts should be as much prepared for the coming of Christ as if he were still to come into this world. The same lesson is given us for our imitation by the words and example of the holy men of the Old Testament.

Responsory

Sound the trumpets in Zion, summon the nations; call the people together and tell them the good news:
— Our God and our Savior is coming.

Proclaim the good news, let it be heard; tell it to everyone, shout it aloud.
— Our God and our Savior is coming.

Additional Reading
Isaiah 1:21-27; 2:1-5:

The judgment and deliverance of Zion. The gathering of the nations

Te Deum

You are God: we praise you;
You are the Lord: we acclaim you;
You are the eternal Father:
All creation worships you.

To you all angels, all the powers of heaven,
Cherubim and Seraphim, sing in endless praise:
Holy, holy, holy, Lord, God of power and might,
heaven and earth are full of your glory.

The glorious company of apostles praise you.
The noble fellowship of prophets praise you.
The white-robed army of martyrs praise you.

Throughout the world the holy Church acclaims you:
Father, of majesty unbounded,
your true and only Son, worthy of all worship,
and the Holy Spirit, advocate and guide.

You, Christ, are the King of glory,
the eternal Son of the Father.

When you became man to set us free
you did not spurn the Virgin’s womb.

You overcame the sting of death,
and opened the kingdom of heaven to all believers.

You are seated at God’s right hand in glory.
We believe that you will come, and be our judge.

Come then, Lord, and help your people,
bought with the price of your own blood,
and bring us with your saints
to glory everlasting.

Save your people, Lord, and bless your inheritance.
— Govern and uphold them now and always.

Day by day we bless you.
— We praise your name for ever.

Keep us today, Lord, from all sin.
— Have mercy on us, Lord, have mercy.

Lord, show us your love and mercy,
— for we have put our trust in you.