Additional information below the fold:
The lyrics are from an oratorio, and they are latin. They have been used by Saint-Saëns, Bach, and Schubert.
Tollite hostias,It is a Biblical passage, Psalm 95 (96):9-13.
et adorate Dominum
in atrio sancto eius.
et exultet terra
a facie Domini,
and worship the Lord
in His holy habitation.
Let the heavens rejoice
and the earth exult
in the presence of the Lord, for He comes.