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

There are many things that are true, honorable and just,
many that are pure; think about them.
— These you must do, and the God of peace will be with you.

Be on your guard, stand firm in the faith,
be courageous and strong.
— These you must do, and the God of peace will be with you.

From a homily on Matthew by Saint John Chrysostum, bishop
If we are sheep, we overcome, if wolves, we are overcome

As long as we are sheep, we overcome and, though surrounded by countless wolves, we emerge victorious; but if we turn into wolves, we are overcome, for we lose the shepherd’s help. He, after all, feeds the sheep not wolves, and will abandon you if you do not let him show his power in you.

What he says is this: “Do not be upset that, as I send you out among the wolves, I bid you be as sheep and doves. I could have managed things quite differently and sent you, not to suffer evil nor to yield like sheep to the wolves, but to be fiercer than lions. but the way I have chosen is right. It will bring you greater praise and at the same time manifest my power.” That is what he told Paul: My grace is enough for you, for in weakness my power is made perfect. “I intend,” he says, “to deal the same way with you.” For, when he says, I am sending you out like sheep, he implies: “But do not therefore lose heart, for I know and am certain that no one will be able to overcome you.”

The Lord, however, does want them to contribute something, lest everything seem to be the work of grace, and they seem to win their reward without deserving it. Therefore he adds: You must be clever as snakes and innocent as doves. But, they may object, what good is our cleverness amid so many dangers? How can we be clever when tossed about by so many waves? However great the cleverness of the sheep as he stands among the wolves – so may wolves! – what can it accomplish? However great the innocence of the dove, what good does it do him, with so many hawks swooping upon him? To all this I say: Cleverness and innocence admittedly do these irrational creatures no good, but they can help you greatly.

What cleverness is the Lord requiring here? The cleverness of a snake. A snake will surrender everything and will put up no great resistance even if its body is being cut in pieces, provided it can save its head. So you, the Lord is saying, must surrender everything but your faith: money, body, even life itself. For faith is the head and the root; keep that, and though you lose all else, you will get it back in abundance. The Lord therefore counselled the disciples to be not simply clever or innocent; rather he joined the two qualities so that they become a genuine virtue. He insisted on the cleverness of the snake so that deadly wounds might be avoided, and he insisted on the innocence of the dove so that revenge might not be taken on those who injure or lay traps for you. Cleverness is useless without innocence.

Do not believe that this precept is beyond your power. More than anyone else, the Lord knows the true natures of created things; he knows that moderation, not a fierce defense, beats back a fierce attack.

Responsory

See, I am sending you out like sheep among wolves,
says the Lord.
— Be as cunning as serpents and as innocent as doves.

While you have the light,
believe in the light,
so that you may become children of light.
— Be as cunning as serpents and as innocent as doves.

Additional Reading
2 Peter 2:9-22
The condemnation of the wicked

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.

In you, Lord, is our hope:
— And we shall never hope in vain.