Here is a piano version (shortened) of a worship song that is a setting of the Agnus Dei.

These are the words:

Lamb of God, you take away the sins of the world;
have mercy on us.
Lamb of God, you take away the sins of the world;
have mercy on us.
Lamb of God, you take away the sins of the world;
grant us your peace.

Grace and peace to you…

dw