O Glorious Prince of the heavenly host, Saint Michael the Archangel, defend us in battle and in the struggle, which is ours against the princes and powers, against the rulers of the world of these shadows, against the spiritual beings of worthlessness, in the heavens. Come to the aid of men, whom God created inextinguishable, and made to the image of His own likeness, and bought from the tyranny of the devil at a great price. Fight today the battles of the Lord with the army of the blessed Angels, as thou did fight against Lucifer, the leader of pride, and all his apostate angels: and indeed they did not prevail, nor was their place found any more in Heaven. But that great dragon was cast forth, the ancient serpent, who is called the devil and Satan, who seduces the whole globe; and he was cast forth upon Earth, and his angels were sent with him.

Lo! the ancient enemy and homicide has been fiercely aroused. Transfigured into an angel of light, with the whole troop of malign spirits he entirely surrounds and invades the Earth, to blot out in it the Name of God and of His Christ, and to steal, slay, and destroy in sempiternal ruin, the souls destined for a crown of eternal glory. The venom of his worthlessness, as the most unclean river, the evil-doing dragon pours into men depraved in mind and corrupt in heart; a spirit of lying, impiety and blasphemy; and a breath of mortiferous luxury, of all vices and iniquities.

 
Be favourable to the Church, the spouse of the Immaculate Lamb, whom enemies have filled with bitterness’s, and inebriated with wormwood; upon all Her desirable things they have laid their impious hands. Where the See of the most blessed Peter and the Cathedra of Truth has been constituted as a light to the nations, there they have placed a throne of their abomination and impiety; so that with the Pastor struck, they may prevail to disperse the flock.

Therefore be present, most unconquered Leader, against the spiritual worthlessness’s bursting upon the people of God, and bring about a victory. Thou are venerated by Holy Church as Her guard and patron; Thou are glorified as the defender against the nefarious, earthly and infernal powers; to thee the Lord has handed over the souls of the redeemed to be placed in supernal felicity. Entreat the God of peace, to obliterate Satan beneath our feet, lest he prevail further to hold men captive, and to injure the Church. Offer our prayers in the sight of the Most High, so that the mercies of the Lord may swiftly overcome us, and apprehend the dragon, the ancient serpent, who is the devil and Satan, and send him bound into the abyss, so that he may no more seduce the nations. Henceforth having been confided to thy escort and protection, we sacred ministers by our authority [if recited by a layman, or cleric who has not yet taken up the order of exorcist, say instead, "by the authority of Holy Mother Church], trusting and fearless in the Name of Jesus Christ, Our God and Lord, we undertake to repel the infestations of diabolic deceit.

V. Behold the Cross of the Lord, fly adverse parties.
R. The Lion of the tribe of Judea, the root of David, has conquered.

V. Let Thy mercy be upon us Lord.
R. As much as we hope in Thee.

V. Lord, hear my prayer.
R. And let my cry come unto Thee.

[if recited by at least a deacon add the following:

V. The Lord be with you all.
R. And with thy spirit.]

Let us pray.

O God, and Father of Our Lord Jesus Christ, we invoke Thy Holy Name, and as supplicants we implore Thy clemency so that, through the intercession of Mary, the Immaculate ever-Virgin Theotokos, of blessed Michael the Archangel, of blessed Joseph, the Spouse of the same blessed Virgin, of the blessed Apostles Peter and Paul, and of all the Saints, Thou may deign to offer us aid against Satan, and all the other unclean spirits, who wander through the world to injure the human race and to destroy souls. We ask this through Christ Our Lord. Amen.

Prayer to St. Joseph (to be said after the Rosary)
by Pope Leo XIII

We come to thee; O blessed Joseph, in our sore distress. Having sought the aid of thy most blessed Spouse, we now confidently implore thy assistance also. We humbly beg that, mindful of the dutiful affection which bound thee to the Immaculate Virgin Mother of God, and of the fatherly love with which thou didst cherish the Child Jesus, thou wilt loving watch over the heritage which Jesus Christ purchased with His blood, and by thy powerful intercession help us in our urgent need. Most powerful guardian of the Holy Family, protect the chosen race of Jesus Christ; drive far from us, most loving father, every pest of error and corrupting sin. From thy place in heaven, most powerful protector, graciously come to our aid in this conflict with the power of darkness, and as of old thou didst deliver the Child Jesus from supreme peril of life, so now defend the holy Church of God from the snares of Her enemies and from all adversity. Have each of us always in thy keeping, that, following thy example, and borne up by thy strength, we may be able to live holily, die happily, and so enter the everlasting bliss of heaven. Amen.

Prayer to the Holy Spirit (before meditation)

Come Holy Spirit, fill the hearts of Thy faithful and enkindle in them the fire of Thy love.

V..: Send forth Thy Spirit and they shall created, R.: And Thou shall renew the face of the earth.

Let us pray:

O God, who didst by the light of the Holy Spirit enlighten the faithful, grant that by the same Spirit we may be truly wise and ever rejoice in His consolations. Through Christ, Our Lord. Amen.

A Prayer of Repentance

O Almighty, Eternal, Most Just and Merciful God, I prostrate myself before Thy Face, humbly beseeching Thee, who alone are Good, all good, wholly good, ever Good, that remembering the most bitter Passion and Death of Thy Only-Begotten Son, and the most sorrowful compassion of His Immaculate Mother, Thou wouldst deign to look with an eye of pity upon this most wretched of Thy creatures.

So many treasures of nature Thou hast given me and consoled me with, and I have not heeded Thy Word and commands. So many blessings of grace Thou hast lavished upon me, and I have squandered them in vice and iniquitous selfishness. So bountiful has been Thy mercies of forgiveness and pardon to me, and I have rebelled and betrayed Thee yet again.

Truly, am I not worthy of Thy consideration; nay rather, do I deserve eternal damnation. Even the troubles, sacrifices, and difficulties of a thousand most bitter lifetimes are not sufficient to atone for my wickedness. Truly am I worthy, not of Thee, but of hell alone, of damnation and eternal torments. Yet I, like and impudent swine, do still complain and murmur.

Daring not to raise my eyes unto Thee, who are infinite Goodness and most exacting Justice, I beseech Thee, through the merits of the Passion and Death of Thy Most Beloved Son, who for my sake became a slave unto death, death on a Cross, upon which in the last moments of His most bitter agony, He didst bestow upon me His own most Beloved Mother, Thy Daughter by grace and election. In virtue of Their merits, by which I have been so many times succoured in my great necessities, I beseech Thee hear this my petition.

Have mercy upon me! Have great mercy upon me! For without Thee I can do nothing worthy of Thy consideration. I who am nothing, and by sin even less than nothing. A wretch, a swine, a cesspool of every vice and iniquity!

Therefore I beseech Thee, O Most Blessed Trinity, to shed the fire of Thy merciful love upon this most frigid heart, to let shine upon this most darkened mind, the light of the Son, in whom alone is every grace and truth. Have pity on me, most Merciful God, and regard not my sins and offences, but in Thy mercy forgive me yet again, and grant me the graces to serve Thee now in fidelity and truth.

I am not worthy to serve Thee, but Thou dost deserve all my service. In the Name of Jesus, Thy Mercy, therefore, I beseech Thee. In the name of Mary, I pray. Amen.