This hymn was used for Vespers I & II of the Feast of the Sweetest Name of Jesus (Aug. 7) in the Sarum Breviary. From what I can find, the hymn originated somewhere in 15th Century England.
This is the text as it appears in Hymns Ancient and Modern (1867):
Let every heart exulting beat
With joy at Jesu’s Name of bliss;
With every pure delight replete,
And passing sweet its music is.
Jesus the comfortless consoles;
Jesus each sinful fever quells;
Jesus the power of hell controls;
Jesus each deadly foe repels.
O speak His glorious Name abroad!
Jesus let every tongue confess;
Let every heart and voice accord
The Healer of our souls to bless.
Jesu, the sinner’s Friend, abide
With us, and hearken to our prayer;
Thy frail and erring wanderers guide,
In mercy our transgressions spare.
All might, all glory be to Thee,
Refulgent with this Name Divine;
All honour, worship, majesty,
Jesu, for evermore be Thine! Amen.
Words: Anonymous, 15th C., tr. John David Chambers, 19th C., alt.
Tune: “Abends” Herbert S. Oakeley, 1873 .
The original Latin text of this hymn may be found here.