Lapidem quem reprobaverunt edificantes hic factus est in caput anguli. Alleluia. Crucem sanctam subiit, qui infernum confregit, accinctus est potentiam, surrexit die tertia. Alleluia.
I am not a christian but that song is great, dating from the middle of the 12th century, found in Jerusalem, probably written by the knights Templar. This edition seems to have been sung by... the French.