Thee, Lord, before the close of day,
Maker of all things, Thee we pray
for Thy dear loving kindness' sake
to guard and guide us in Thy way.

Banish the dreams that terrify,
and night's fantastic company;
keep us from Satan's tyranny;
defend us from unchastity.

Protect us, Father, God ador'd,
Thou, too, coequal Son and Lord,
Thou, Holy Ghost, our Advocate,
whose reign can know nor bound nor date.

... Old Latin hymn (St. Ambrose?)