A hymn that’s good for all day

O God, creation's secret force,
Yourself unmoved, all motion's source
Who from the morn till evening ray
Through all its changes guide the day.

Grant us, when this short life is past,
The glorious evening that shall last;
That, by a holy death attained,
Eternal glory may be gained.

To God the Father, God the Son,
And God the Spirit, Three in One,
May every tongue and nation raise
An endless song of thankful praise.

This hymn is by St. Ambrose, 4th century bishop, one of the most prolific of Latin hymn writers. It's said (Early Christian Hymns, Daniel Joseph Donahoe, 1908) he was the first to introduce the custom of singing hymns in the church. One source I have presents this as a morning song, another mid-day, and one as an evening song. Seems to work for all. And the translations vary. This one has a more modern English.