This hymn is used for Prime on Sundays and Weekdays throughout the year in the Extraordinary form of the Roman Breviary. It is used for Lauds/Morning Prayer on Thursdays of Weeks II & IV during Ordinary Time in the Ordinary Form.
This is the text of the hymn as it appears in Hymns Ancient and Modern (1867):
Now that the daylight fills the sky,
We lift our hearts to God on high,
That He, in all we do or say,
Would keep us free from harm to-day.
May He restrain our tongues from strife,
And shield from anger’s din our life,
And guard with watchful care our eyes
From earth’s absorbing vanities.
O may our inmost hearts be pure,
From thoughts of folly kept secure,
And pride of sinful flesh subdued
Through sparing use of daily food.
So we, when this day’s work is o’er,
And shades of night return once more,
Our path of trial safely trod,
Shall give the glory to our God.
All praise to God the Father be,
All praise, eternal Son, to Thee,
Whom with the Spirit we adore
Forever and forevermore. Amen.
Words: Anonymous Latin, 6th C.; tr. John Mason Neale, 1852.
Tune: “Warrington” Ralph Harrison, 1784.
The original Latin text may be found here.