PL 78, col. 852

Hymni (Gregorius I), J. P. Migne

Tradis potentem spiritum,
Nigrescit atque saeculum.
6. Mox in paternae gloriae
Victor resplendens culmine,
Cum Spiritus munimine
Defende nos, Rex optime.
Amen.

Text from the Corpus Corporum (University of Zurich).