Today is the feast of Our Lady of Sorrows

Litany of Our Lady of Seven Sorrows
by Pope Pius VII

A litany is a well-known and much appreciated form of responsive petition, used in public liturgical services, and in private devotions, for common necessities of the Church, or in calamities — to implore God's aid or to appease His just wrath.

Lord, have mercy on us.
Christ, have mercy on us.
Lord, have mercy on us.
Christ, hear us. Christ, graciously hear us.
God, the Father of heaven, Have mercy on us.
God the Son, Redeemer of the world, Have mercy on us.
God the Holy Ghost, pray for us
Holy Mary, Mother of God, pray for us
Holy Virgin of virgins, pray for us
Mother of the Crucified, pray for us
Sorrowful Mother, pray for us
Mournful Mother, pray for us
Sighing Mother, pray for us
Afflicted Mother, pray for us
Foresaken Mother, pray for us
Desolate Mother, pray for us
Mother most sad, pray for us
Mother set around with anguish, pray for us
Mother overwhelmed by grief, pray for us
Mother transfixed by a sword, pray for us
Mother crucified in thy heart, pray for us
Mother bereaved of thy Son, pray for us
Sighing Dove, pray for us
Mother of Dolors, pray for us
Fount of tears, pray for us
Sea of bitterness, pray for us
Field of tribulation, pray for us
Mass of suffering, pray for us
Mirror of patience, pray for us
Rock of constancy, pray for us
Remedy in perplexity, pray for us
Joy of the afflicted, pray for us
Ark of the desolate, pray for us
Refuge of the abandoned, pray for us
Shield of the oppressed, pray for us
Conqueror of the incredulous, pray for us
Solace of the wretched, pray for us
Medicine of the sick, pray for us
Help of the faint, pray for us
Strength of the weak, pray for us
Protectress of those who fight, pray for us
Haven of the shipwrecked, pray for us
Calmer of tempests, pray for us
Companion of the sorrowful, pray for us
Retreat of those who groan, pray for us
Terror of the treacherous, pray for us
Standard-bearer of the Martyrs, pray for us
Treasure of the Faithful, pray for us
Light of Confessors, pray for us
Pearl of Virgins, pray for us
Comfort of Widows, pray for us
Joy of all Saints, pray for us
Queen of thy Servants, pray for us
Holy Mary, who alone art unexampled, pray for us

Pray for us, most Sorrowful Virgin, that we may be made worth of the promises of Christ

Let us pray, O God, in whose Passion, according to the prophecy of Simeon, a sword of grief pierced through the most sweet soul of Thy glorious Blessed Virgin Mother Mary: grant that we, who celebrate the memory of her Seven Sorrows, may obtain the happy effect of Thy Passion, Who lives and reigns world without end, Amen. 

Prayers in Honor of the Seven Sorrows of the Blessed Virgin Mary

Pope Pius VII approved another series of prayers in honor of the Seven Sorrows for daily meditation in 1815:

O God, come to my assistance; O Lord, make haste to help me. Glory be to the Father, the Son, and the Holy Spirit, as it was in the beginning, is now, and ever shall be, world without end. Amen.

1. I grieve for you, O Mary most sorrowful, in the affliction of your tender heart at the prophecy of the holy and aged Simeon. Dear Mother, by your heart so afflicted, obtain for me the virtue of humility and the gift of the holy fear of God. Hail Mary…

2. I grieve for you, O Mary most sorrowful, in the anguish of your most affectionate heart during the flight into Egypt and your sojourn there. Dear Mother, by your heart so troubled, obtain for me the virtue of generosity, especially toward the poor, and the gift of piety. Hail Mary…

3. I grieve for you, O Mary most sorrowful, in those anxieties which tried your troubled heart at the loss of your dear Jesus. Dear Mother, by your heart so full of anguish, obtain for me the virtue of chastity and the gift of knowledge. Hail Mary…

4. I grieve for you, O Mary most sorrowful, in the consternation of your heart at meeting Jesus as He carried His Cross. Dear Mother, by your heart so troubled, obtain for me the virtue of patience and the gift of fortitude. Hail Mary…

5. I grieve for you, O Mary most sorrowful, in the martyrdom which your generous heart endured in standing near Jesus in His agony. Dear Mother, by your afflicted heart obtain for me the virtue of temperance and the gift of counsel. Hail Mary…

6. I grieve for you, O Mary most sorrowful, in the wounding of your compassionate heart, when the side of Jesus was struck by the lance before His Body was removed from the Cross. Dear Mother, by your heart thus transfixed, obtain for me the virtue of fraternal charity and the gift of understanding. Hail Mary…

7. I grieve for you, O Mary most sorrowful, for the pangs that wrenched your most loving heart at the burial of Jesus. Dear Mother, by your heart sunk in the bitterness of desolation, obtain for me the virtue of diligence and the gift of wisdom. Hail Mary…
Let Us Pray:

Let intercession be made for us, we beseech You, O Lord Jesus Christ, now and at the hour of our death, before the throne of Your mercy, by the Blessed Virgin Mary, Your Mother, whose most holy soul was pierced by a sword of sorrow in the hour of Your bitter Passion. Through You, O Jesus Christ, Savior of the world, Who with the Father and the Holy Spirit lives and reigns world without end. Amen.

Consecration to Our Lady of Sorrows

Most holy Virgin and Queen of Martyrs, Mary, would that I could be in Heaven, there to contemplate the honors rendered to thee by the Most Holy Trinity and by the whole Heavenly Court! But since I am still a pilgrim in this vale of tears, receive from me, thy unworthy servant and a poor sinner, the most sincere homage and the most perfect act of vassalage a human creature can offer thee. In thy Immaculate Heart, pierced with so many swords of sorrow, I place today my poor soul forever; receive me as a partaker in thy dolors, and never suffer that I should depart from that Cross on which thy only begotten Son expired for me.

With thee, O Mary, I will endure all the sufferings, contradictions, infirmities, with which it will please thy Divine Son to visit me in this life. All of them I offer to thee, in memory of the Dolors which thou didst suffer during thy life, that every thought of my mind, every beating of my heart may henceforward be an act of compassion to thy Sorrows, and of complacency for the glory thou now enjoyest in Heaven. Since then, O Dear Mother, I now compassionate thy Dolors, and rejoice in seeing thee glorified, do thou also have compassion on me, and reconcile me to thy Son Jesus, that I may become thy true and loyal son (daughter); come on my last day and assist me in my last agony, even as thou wert present at the Agony of thy Divine Son Jesus, that from this painful exile I may go to Heaven, there to be made partaker of thy glory. Amen.