Agnus Dei is the Latin name under which the "Lamb of God" is honoured within the Catholic Mass and other Christian liturgies descending from the Latin liturgical tradition. It is the name given to a specific prayer that occurs in these liturgies, and is the name given to the music pieces that accompany the text of this prayer.[1][2]
The use of the title "Lamb of God" in liturgy is based on John 1:29, in which St. John the Baptist, upon seeing Jesus, proclaims "Behold, the Lamb of God, who takes away the sin of the world!"
The Syrian custom of a chant addressed to the Lamb of God was introduced into the Roman Rite Mass by Pope Sergius I (687–701)[3][4] in the context of his rejection of the Council of Trullo of 692 (which was well received in the Byzantine East), whose canons had forbidden the iconographic depiction of Christ as a lamb instead of a man.[5]
Agnus Dei, qui tollis peccata mundi, miserere nobis. |
Lamb of God, who takes away the sins of the world, have mercy on us. |
—Latin | —English translation[6] |
The verse used in the first and second invocations may be repeated as many times as necessary whilst the celebrant prepares the host and wine for communion.[7]
In a Tridentine Requiem Mass, the words "miserere nobis" are replaced by "dona eis requiem" (grant them rest), while "dona nobis pacem" is replaced by "dona eis requiem sempiternam" (grant them eternal rest).
The priest uses the phrase "Lamb of God" again, later in the Mass. While displaying the Eucharistic species to the people before giving them Holy Communion, he says: "Ecce Agnus Dei, ecce qui tollit peccata mundi. Beati qui ad cenam Agni vocati sunt." ("Behold the Lamb of God, behold Him who takes away the sins of the world. Blessed are those called to the supper of the Lamb.")[6]: 132
The following instances are found in the Church of England's Book of Common Prayer:
From "The Litany":
O Lamb of God: that takest away the sins of the world; Grant us thy peace.
O Lamb of God: that takest away the sins of the world; Have mercy upon us.
From "Holy Communion":
Lamb of God, Son of the Father, that takest away the sins of the world, have mercy upon us.
The following versions are found in Common Worship, the alternative Anglican liturgical resources, and also in the Episcopal Church's liturgical resources:
Lamb of God, you take away the sin of the world, have mercy on us.
Lamb of God, you take away the sin of the world, have mercy on us.
Lamb of God, you take away the sin of the world, grant us peace.
O Lamb of God, that takest away the sins of the world, have mercy upon us.
O Lamb of God, that takest away the sins of the world, have mercy upon us.
O Lamb of God, that takest away the sins of the world, grant us thy peace.
Jesus, Lamb of God, have mercy on us.
Jesus, bearer of our sins, have mercy on us.
Jesus, redeemer of the world, grant us peace.
The version found in the Lutheran Service Book of the Lutheran Church–Missouri Synod is:
Lamb of God, You take away the sin of the world; have mercy on us.
Lamb of God, You take away the sin of the world; have mercy on us.
Lamb of God, You take away the sin of the world; grant us Your peace, grant us Your peace.
Virtually every Mass setting (of which there are thousands) includes an Agnus Dei. Here are some examples:
With a slightly changed text, the Agnus Dei is also part of musical settings composed for the Requiem Mass for the Dead. Such settings include:
Some composers set the text as an independent movement, such as Samuel Barber, who wrote a version combining the text with the music of his Adagio for Strings, sung a cappella.
Outside of religious use, the text has been used by composers such as: