There is no rose

There is no rose of such virtue
As is the rose that bare Jesu:
Alleluya

For in this rose contained was
Heaven and earth in little space:
Res miranda

By that rose we may well see
That he is God in person three:
Pari forma

The angels sung the shepherds to:
"Gloria in excelsis Deo"
Gaudeamus

Leave we all this worldly mirth
And follow we this joyful birth:
Transeamus