"Deus, in adiutorium meum intende", with the response "Domine, ad adiuvandum me festina" (respectively, "O , come to my assistance" and "O , make haste to help me") are the first verse of

Psalm 70 Psalm 70 is the 70th psalm of the Book of Psalms, beginning in English in the King James Version: "Make haste, O God, to deliver me". The Book of Psalms is part of the third section of the Hebrew Bible, and a book of the Christian Old Testament ...

(Psalm 69 in the

Vulgate The Vulgate () is a late-4th-century Bible translations into Latin, Latin translation of the Bible. It is largely the work of Saint Jerome who, in 382, had been commissioned by Pope Damasus I to revise the Gospels used by the Diocese of ...

): "Make haste, O , to deliver me; make haste to help me, O ." In this form they are a traditional

Latin Latin ( or ) is a classical language belonging to the Italic languages, Italic branch of the Indo-European languages. Latin was originally spoken by the Latins (Italic tribe), Latins in Latium (now known as Lazio), the lower Tiber area aroun ...

Christian prayer. These words form the introductory prayer to every

Hour An hour (symbol: h; also abbreviated hr) is a unit of time historically reckoned as of a day and defined contemporarily as exactly 3,600 seconds ( SI). There are 60 minutes in an hour, and 24 hours in a day. The hour was initially establis ...

of the Roman, Ambrosian, and monastic

Breviaries A breviary () is a liturgical book used in Christianity for praying the canonical hours, usually recited at seven fixed prayer times. Historically, different breviaries were used in the various parts of Christendom, such as Aberdeen Breviary, ...

, except during the last three days of

Holy Week Holy Week () commemorates the seven days leading up to Easter. It begins with the commemoration of Triumphal entry into Jerusalem, Christ's triumphal entry into Jerusalem on Palm Sunday, marks the betrayal of Jesus on Spy Wednesday (Holy Wednes ...

, and in the

Office of the Dead The Office of the Dead or Office for the Dead (in Latin, Officium Defunctorum) is a prayer cycle of the Canonical Hours in the Catholic Church, Anglican Church and Lutheran Church, said for the repose of the soul of a decedent. It is the proper ...

. While these are recited or sung, all present bless themselves with the

sign of the cross Making the sign of the cross (), also known as blessing oneself or crossing oneself, is both a prayer and a ritual blessing made by members of some branches of Christianity. It is a very significant prayer because Christians are acknowledging ...

. Since the liturgical revision of the

Second Vatican Council The Second Ecumenical Council of the Vatican, commonly known as the or , was the 21st and most recent ecumenical council of the Catholic Church. The council met each autumn from 1962 to 1965 in St. Peter's Basilica in Vatican City for session ...

all liturgical hours begin with these words (apart from the first recited each day where the verse is replaced by the

Invitatory The invitatory (Latin: invitatorium; also invitatory psalm) is the psalm used to start certain daily prayer offices in Catholic and Anglican traditions. Most often it is Psalm 94(95), also known as the Venite.Numbered 94 in the Greek Septuagint, 9 ...

. Tradition says that

Benedict of Nursia Benedict of Nursia (; ; 2 March 480 – 21 March 547), often known as Saint Benedict, was a Great Church, Christian monk. He is famed in the Catholic Church, the Eastern Orthodox Church, the Lutheran Churches, the Anglican Communion, and Old ...

introduced this custom into the monastic Office, heavily influenced by the writings of Saint John Cassian. Saint

Gregory the Great Pope Gregory I (; ; – 12 March 604), commonly known as Saint Gregory the Great (; ), was the 64th Bishop of Rome from 3 September 590 until his death on 12 March 604. He is known for instituting the first recorded large-scale mission from Rom ...

extended it to all the Roman churches. Saint

John Cassian John Cassian, also known as John the Ascetic and John Cassian the Roman (, ''Ioannes Cassianus'', or ''Ioannes Massiliensis''; Greek: Ίωάννης Κασσιανός ό Ερημίτης; – ), was a Christian monk and theologian celebrated ...

(Coll., X, 10) wrote that from the earliest Christian times the monks used this introduction very often, including outside of the liturgical prayers, as an invocation for every situation, for times of temptation, tiredness, and joy.

Liturgical use

In placing this supplication at the beginning of every

canonical hour In the practice of Christianity, canonical hours mark the divisions of the day in terms of Fixed prayer times#Christianity, fixed times of prayer at regular intervals. A book of hours, chiefly a breviary, normally contains a version of, or sel ...

, the

Catholic Church The Catholic Church (), also known as the Roman Catholic Church, is the List of Christian denominations by number of members, largest Christian church, with 1.27 to 1.41 billion baptized Catholics Catholic Church by country, worldwid ...

implores the assistance of God against distractions in prayer. In the

Roman Rite The Roman Rite () is the most common ritual family for performing the ecclesiastical services of the Latin Church, the largest of the ''sui iuris'' particular churches that comprise the Catholic Church. The Roman Rite governs Rite (Christianity) ...

, the "Deus, in adiutorium" is preceded at

Matins Matins (also Mattins) is a canonical hour in Christian liturgy, originally sung during the darkness of early morning (between midnight and dawn). The earliest use of the term was in reference to the canonical hour, also called the vigil, which w ...

by the "Domine, labia mea aperies" ("Open Thou, O , my lips), whilst in the monastic

breviary A breviary () is a liturgical book used in Christianity for praying the canonical hours, usually recited at seven fixed prayer times. Historically, different breviaries were used in the various parts of Christendom, such as Aberdeen Breviar ...

, the order is reversed. At

Compline Compline ( ), also known as Complin, Night Prayer, or the Prayers at the End of the Day, is the final prayer liturgy (or office) of the day in the Christian tradition of canonical hours, which are prayed at fixed prayer times. The English wor ...

, it is always preceded by the "Converte nos, Deus". In the Mozarabic liturgy the hours commence with the triple ''

Kyrie Eleison ', a transliteration of Greek , vocative case of ('' Kyrios''), is a common name of an important prayer of Christian liturgy, also called the ( ; ). In the Bible The prayer, , "Lord, have mercy" derives from a Biblical phrase. Greek , ...

''. In all the Latin countries north, east, and west of the

Alps The Alps () are some of the highest and most extensive mountain ranges in Europe, stretching approximately across eight Alpine countries (from west to east): Monaco, France, Switzerland, Italy, Liechtenstein, Germany, Austria and Slovenia. ...

, the introduction to the solemn

Vespers Vespers /ˈvɛspərz/ () is a Christian liturgy, liturgy of evening prayer, one of the canonical hours in Catholic (both Latin liturgical rites, Latin and Eastern Catholic liturgy, Eastern Catholic liturgical rites), Eastern Orthodox, Oriental O ...

Easter Sunday Easter, also called Pascha (Aramaic: פַּסְחָא , ''paskha''; Greek language, Greek: πάσχα, ''páskha'') or Resurrection Sunday, is a Christian festival and cultural holiday commemorating the resurrection of Jesus from the dead, de ...

was formed by the nine ''Kyrie'' Eleison and ''Christe Eleison'' of the Easter Mass. In the churches which observe the

Greek Rite The Byzantine Rite, also known as the Greek Rite or the Rite of Constantinople, is a liturgical rite that is identified with the wide range of cultural, devotional, and canonical practices that developed in the Eastern Christianity, Eastern Chri ...

, the ''

Trisagion The ''Trisagion'' (; 'Thrice Holy'), sometimes called by its incipit ''Agios O Theos'', is a standard hymn of the Divine Liturgy in most of the Eastern Orthodox Church, Eastern Orthodox, Western Orthodox, Oriental Orthodoxy, Oriental Orthodox, an ...

'' and other prayers open the hours. The "Deus, in adiutorium" is repeated three times during the conclusional prayers of

Prime A prime number (or a prime) is a natural number greater than 1 that is not a product of two smaller natural numbers. A natural number greater than 1 that is not prime is called a composite number. For example, 5 is prime because the only ways ...

. In monasteries, Prime was finished immediately after the prayer: "Domine, Deus omnipotens"; then the monks went from the choir to the chapter-room, where the

Martyrology A martyrology is a catalogue or list of martyrs and other saints and beati arranged in the calendar order of their anniversaries or feasts. Local martyrologies record exclusively the custom of a particular Church. Local lists were enriched by na ...

was read, and the day's work was given out; before dispersing to their several occupations they sang three times the "Deus, in adjutorium", to emphasize the union of prayer and labour.

References

;Attribution * The entry cites: ** WOLTER, Psallite sapienter (Freiburg, 1905), II, 658; ** Nord-amerikanisches Pastoralblatt (Dec., 1907); ** Batiffol, Tr. BAY-LAY, History of the Roman Breviary (London, 1898); ** BERNARD, Cours de liturgie romaine: le Breviare (Paris, 1887), II, 148-50. {{DEFAULTSORT:Deus In Adjutorium Meum Intende Christian prayer Vulgate Latin words and phrases