Dude, that ain't Latin. It's Greek. Yes, even the "Traditional Latin Mass" has those three sentences in Greek. Here's some Latin for you: Agnus Dei qui tollis pecata mundi miserere nobis. Agnus Dei qui tollis pecatta mundi miserere nobis. Agnus Dei qui tollis pecatta mundi dona nobis pacem.
AB
I knew that! I was just testing you. No, really, it's all Greek to me. Let me try your sample of Latin, without cheating.
"Lamb of God, who takes away the sins of the world," um..."receive our prayer?" "Lamb of God, who takes away the sins of the world, grant us thy peace."
Sorry for any pecattas of translation.