Trisagion

Sing Hymnal - https://www.singhymnal.com/hymn/trisagion/hymnal-score/ 

Lyrics

Chorus
Holy God, holy and mighty, Holy Immortal One, have mercy; have mercy on us.

About this Hymn

Among the most ancient of texts to be found in this hymnal, the words of the hymn "Trisagion" date to the third century, acknowledging the might, immortality, and unmatched mercy of God. This stunning setting, written by Fernando Ortega in recent years, feels timeless in its reverent beauty.