Cantus firmus to counterpoint

Rejoice this harvestide, Alleluia.
Grateful for our countryside, Alleluia.
Mother earth yields her wheat, Alleluia.
Food For all the world to eat, Alleluia.

(Chorus:)
Alleluia (etc.)

Rejoice this Christmas tide, Alleluia.
Barriers of the world divide, Alleluia.
Peace on earth, goodwill to men, Alleluia.
Gives us cause to sing again, Alleluia.

(Chorus)