This is an official litany, which was given universal recommendation by Pope Leo XIII in 1886. Although the exact origins of this litany remain unkown, it is believed that St. Bernardine of Siena and his student St. John of Capistrano, two 15th century devotees to the Holy Name of Jesus, had a hand in its writing.  In this prayer are proclaimed the many names by which Jesus is known, which gives us a good opportunity to meditate on both our Lord's attribute and his life, while asking him for heavenly guidance and assistance. When prayed publicly, the congregation's lines are in italic. 

Litany of the Most Holy Name of Jesus

Lord, have mercy on us. Christ, have mercy on us.
Lord, have mercy on us.
Jesus, hear us. Jesus, 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 Spirit, have mercy on us.
Holy Trinity, One God, have mercy on us.

Jesus, Son of the Living God, have mercy on us.
Jesus, splendor of the Father, have mercy on us.
Jesus, brightness of eternal light, have mercy on us.
Jesus, King of glory, have mercy on us.
Jesus, Sun of Justice, have mercy on us.
Jesus, Son of the Virgin Mary, have mercy on us.
Jesus most amiable, have mercy on us.
Jesus most admirable, have mercy on us.
Jesus, mighty God, have mercy on us.
Jesus, father of the world to come, have mercy on us.
Jesus, angel of the great counsel, have mercy on us.
Jesus most powerful, have mercy on us.
Jesus most patient, have mercy on us.
Jesus meek and humble of heart, have mercy on us.
Jesus, lover of chastity, have mercy on us.
Jesus, lover of us, have mercy on us.
Jesus, God of peace, have mercy on us.
Jesus, Author of life, have mercy on us.
Jesus, example of virtues, have mercy on us.
Jesus, zealous lover of souls, have mercy on us.
Jesus, our God, have mercy on us.
Jesus, our refuge, have mercy on us.
Jesus, father of the poor, have mercy on us.
Jesus, treasure of the faithful, have mercy on us.
Jesus, true light, have mercy on us.
Jesus, good Shepherd, have mercy on us.
Jesus, true light, have mercy on us.
Jesus, eternal wisdom, have mercy on us.
Jesus, infinite goodness, have mercy on us.
Jesus, our way and our life, have mercy on us.
Jesus, joy of Angels, have mercy on us.
Jesus, King of patriarchs, have mercy on us.
Jesus, teacher of the evangelists, have mercy on us.
Jesus, strength of martyrs, have mercy on us.
Jesus, light of the confessors, have mercy on us.
Jesus, purity of virgins, have mercy on us.
Jesus, crown of all saints, have mercy on us.

Be merciful unto us, Jesus, spare us.
Be merciful unto us, Jesus, hear us.
From all evil, Jesus deliver us.
From all sin, Jesus deliver us.
From Your wrath, Jesus deliver us.
From the snares of the devil, Jesus deliver us.
From the spirit of uncleanness, Jesus deliver us.
From everlasting death, Jesus deliver us.
From the neglect of the inspirations, Jesus deliver us.
Through the mystery of Your holy incarnation, Jesus deliver us.
Through Your nativity, Jesus deliver us.
Through Your infancy, Jesus deliver us.
Through Your most divine life, Jesus deliver us.
Through Your labors, Jesus deliver us.
Through Your agony and passion, Jesus deliver us.
Through Your cross and dereliction, Jesus deliver us.
Through Your faintness and weariness, Jesus deliver us.
Through Your death and burial, Jesus deliver us.
Through Your resurrection, Jesus deliver us.
Through Your ascension, Jesus deliver us.
Through Your institution of the most holy Eucharist, Jesus deliver us.
Through Your joys, Jesus deliver us.
Through Your glory, Jesus deliver us.

Lamb of God who takes away the sins of the world, spare us, O Jesus.
Lamb of God who takes away the sins of the world, graciously hear us, O Jesus.
Lamb of God who takes away the sins of the world, have mercy on us, O Jesus.
Jesus, hear us. Jesus, graciously hear us.

Let us pray. O Lord Christ, who said: "Ask and you shall receive, seek and you shall find, knock and it shall be opened unto you;" grant, we beseech you, to us Your supplicants, the gift of Your most divine love, that we may love You with our whole heart, in all our words and works, and never cease from praising You. O Lord, give us a perpetual fear as well as love of Your holy Name, for you never cease to govern those You found upon the strength of Your love, Who live and reign world without end. Amen.

Picture: Iesus Hominum Salvator, by Andreas Ritzos, 15th century.