Though the majority of Catholics in America attend Masses almost entirely in English, the Agnus Dei (Lamb of God) is something that is often sung in Latin. If you have ever wondered what each word means in the song, here you go:
Agnus Dei qui tollis peccata mundi
Lamb of God (you)who takes away the sins of the world
miserere nobis
have mercy on us (x 2)
Agnus Dei qui tollis peccata mundi
Lamb of God (you)who takes away the sins of the world
dona nobis pacem
grant to us peace
The initial line comes from John 1.29 where John the Baptizer says, “Ἴδε ὁ ἀμνὸς τοῦ θεοῦ ὁ αἴρων τὴν ἀμαρτίαν τοῦ κόσμου” – Behold the lamb of God who takes away the sin of the world.
A few grammatical notes, for those interested:
qui is a relative pronoun and it means “who”. It is most often used with 3rd singular verbs, just like in English. “I saw a man who loves ice cream.” However, Latin will sometimes use it with a 2nd singular verb, which here is tollis (you take away/lift up/raise/destroy). So it’s “you who takes away the sins”.
miserere is an imperative, a command. “Have mercy”.
dona likewise is an imperative. “grant” or “give.” You can see it is related to the word “donation.”





