Also known as “Come Now Almighty King” this text was originally sung to the same tune as “God Save the King,” (try it – it works) but is now sung to a tune by Felice de Giardini an Italian living in London at the time (hence the tune is called ITALIAN TUNE). The author of the text is unknown and the more miltaristic verses are usually avoided these days.
This is the acceptable text, but Hymnary has the old version asking Jesus to “scatter Thy foes.” You can also look at various versions of the sheet music there.
It’s still a bit over triumphant for my taste. Christianity always seems to work better when it is downtrodden.
It is a Trinitarian hymn and as such was used for that Mass by Ryan’s Parish.
My backing cobbles together a simple organ backing.