Lamb of God You take a- way the sins of the world. Have mer - cy on us. Lamb of God You take a- way the sins of the world. Have mer - cy on us. Lamb of God You take a- way the sins of the world. Grant us peace. Missa De Angelis (Mass of the Angels) English Version Mass Parts Kyrie — “Lord, Have Mercy!” Gloria — “Glory to God in the Highest” Agnus Dei — “Lamb of God” ese melodies are all based on the Latin Missa De Angelis Melodies. e Kyrie, Gloria and Sanctus are all taken from the Vatican II Hymnal from the settings done by Bruce E. Ford. e Agnus Dei was set by Fr. Roger Landry.