SATB Choir (some divisi). In Latin - an absolute esquisite setting for Communion, Lent, and Holy Week. Not easy, but if you have the choir for it, they will eat up these harmonies!
O bone Jesu, miserere nobis,
quia tu creasti nos, tu redemisti nos
sanguine tuo praetiosissimo.
O blessed Jesus, have mercy on us, for you have made us yours,
and redeemed us by your most precious blood.