7 TU TRINITATIS UNITAS
Attributed by some, but with a small degree of probability, to Gregory the Great. The hymn occurs in all the editions of the Roman Breviary, as also in the Sarum, York, and Aberdeen Breviaries.
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O Thou Eternal One in Three, Dread Ruler of the earth and sky, Accept the praise we yield to Thee, Who, waking, lift our songs on high. | Now from the couch of rest we rise, While solemn night in silence reigns, And lift to Thee our earnest cries, To give Thy balm to heal our pains. | If in the night by Satan’s guile Our souls were lured by thought of sin; O bid Thy light celestial smile, And chase away the night within. | Purge Thou our flesh from every stain, Let not dull sloth our hearts depress; Nor let the sense of guilt remain, To chill the warmth our souls possess. | To Thee, Redeemer blest, we pray, That in our souls Thy light may shine; So we shall walk from day to day, Unerring in Thy way Divine. | Grant it, O Father, in Thy love, Grant it, O One-begotten Son, Who with the Spirit reign above, Now, and while endless ages run. | |