If your a fan of Henry V you'll recognize this song. The title is Non Nobis Domine by Patrick Doyle. The words are based on Psalm 115:
Repetition:
Non nobis, Domine, Domine
Non nobis Domine
Sed nomine, sed nomine
Tuo da gloriam
Translation:
Not unto us, O Lord, not unto us,
but unto thy Name give the praise