Translation:
Kind mother of the Redeemer, who remain the open gate of heaven and the star of the sea: help your falling people who want to rise: you who bore your holy Parent, while nature marveled: a Virgin before and after, receiving that ‘Ave’ from Gabriel’s mouth, have mercy on [us] sinners.

(Source: Parish Book of Chant, CMAA 2012)

Lyrics: ascr. to Hermannus Contractus (1013-1054)
Music: Chant, Mode V