MikeLigalig.com

1.   Holy God, we praise thy name;
   Lord of all, we bow before thee;
   all on earth thy scepter claim;
   all in heaven above adore thee. 
   Infinite thy vast domain;
   everlasting is thy reign.

2.   Hark the glad celestial hymn
   angel choirs above are raising;
   cherubim and seraphim,
   in unceasing chorus praising,
   fill the heavens with sweet accord: 
   Holy, holy, holy Lord.

3.   Lo! the apostolic train
   joins thy sacred name to hallow;
   prophets swell the glad refrain,
   and the white-robed martyrs follow. 
   And from morn to set of sun,
   through the church the song goes on.

4.   Holy Father, Holy Son,
   Holy Spirit: three we name thee,
   though in essence only one;
   undivided God we claim thee,
   and adoring bend the knee
   while we own the mystery.

This is one of the most beautiful Catholic Worship Songs out there.
It is sung in thousands of churches throughout the world,
and is usually sung after Eucharistic Adoration or before Mass.

This video shows how beautiful it is when sung with church organs.