It appears to be used as the school song by a number of schools run by the Brigidene Sisters.
There are many variations in the first words of the 2nd and 4th verses, including "Sancte Maria", "Sweet St Brigid", "Holy Mother", and "Sancte Mater" - the latter is used in the slides and lyrics below.
LyricsFar above enthroned in glory
Sweetest Saint of Erin’s Isle
See thy children kneel before thee
Turn on us a Mother’s smile.
Sancta Mater, hear our pleading
Faith and hope and holy love
Sweet St Brigid, spouse of Jesus,
Sent to us from Heaven above.
Sweet St Brigid, Erin’s children,
Far and near o’er land and sea
In the world and in the cloister
Fondly turn with love to thee.
Sancta Mater, sooth the mourner
Shield the weary tempted soul
Sweet St Brigid, guide thy children
To thy bright and happy home.