Our Father
Our Father, who art in heaven, hallowed be Thy name; Thy kingdom come; Thy will be done on earth as it is in heaven. Give us this day our daily bread; and forgive us our trespasses, as we forgive those who trespass against us; and lead us not into temptation, but deliver us from evil. Amen.
Source: Matthew 6:9-13; traditional liturgical English. Usage: the prayer Christ taught; begins every Rosary decade.
Hail Mary
Hail Mary, full of grace, the Lord is with thee. Blessed art thou among women, and blessed is the fruit of thy womb, Jesus. Holy Mary, Mother of God, pray for us sinners, now and at the hour of our death. Amen.
Source: Luke 1:28, 1:42 with the traditional petition. Usage: the core Marian prayer of the Rosary.
Glory Be
Glory be to the Father, and to the Son, and to the Holy Spirit; as it was in the beginning, is now, and ever shall be, world without end. Amen.
Source: traditional doxology. Usage: closes decades of the Rosary and many devotions.
Memorare
Remember, O most gracious Virgin Mary, that never was it known that anyone who fled to thy protection, implored thy help, or sought thy intercession was left unaided. Inspired by this confidence, I fly unto thee, O Virgin of virgins, my mother; to thee do I come, before thee I stand, sinful and sorrowful. O Mother of the Word Incarnate, despise not my petitions, but in thy mercy hear and answer me. Amen.
Source: traditional, popularized by St Bernard of Clairvaux's tradition. Usage: in urgent need of Mary's intercession.
Anima Christi
Soul of Christ, sanctify me. Body of Christ, save me. Blood of Christ, inebriate me. Water from the side of Christ, wash me. Passion of Christ, strengthen me. O good Jesus, hear me. Within Thy wounds hide me. Suffer me not to be separated from Thee. From the malignant enemy defend me. In the hour of my death call me, and bid me come unto Thee, that with Thy saints I may praise Thee for ever and ever. Amen.
Source: traditional, 14th century. Usage: classic thanksgiving after Holy Communion.
Act of Contrition (Traditional)
O my God, I am heartily sorry for having offended Thee, and I detest all my sins because of Thy just punishments, but most of all because they offend Thee, my God, who art all-good and deserving of all my love. I firmly resolve, with the help of Thy grace, to sin no more and to avoid the near occasions of sin. Amen.
Source: traditional form. Usage: in the Sacrament of Penance and in nightly examination of conscience.
Come, Holy Spirit
Come, Holy Spirit, fill the hearts of Thy faithful and enkindle in them the fire of Thy love. Send forth Thy Spirit and they shall be created, and Thou shalt renew the face of the earth. Let us pray: O God, who by the light of the Holy Spirit did instruct the hearts of the faithful, grant that by the same Holy Spirit we may be truly wise and ever enjoy His consolations. Through Christ our Lord. Amen.
Source: traditional invocation from the Pentecost liturgy. Usage: before study, decisions, and at Pentecost.
Prayer to Saint Michael the Archangel
Saint Michael the Archangel, defend us in battle; be our protection against the wickedness and snares of the devil. May God rebuke him, we humbly pray; and do thou, O Prince of the Heavenly Host, by the power of God, cast into hell Satan and all the evil spirits who prowl about the world seeking the ruin of souls. Amen.
Source: Pope Leo XIII, 1884. Usage: for spiritual protection; often prayed after Mass.