This ancient hymn, written by Venantius Fortunatus, has been sung by Christians for some 1500 years to various chant tones and melodies. The melody below is the one from
The Lutheran Hymnal composed by John Hampton (text and tune in the public domain).
Lutheran Service Book includes the hymn with a different melody. I don't know why it didn't make the cut for
Christian Worship: A Lutheran Hymnal, but it didn't.
In case there are any churches that wish to use the hymn on Good Friday but don't have copies of
The Lutheran Hymnal handy, I've created the graphic below that can be inserted in service folders. Right-click the link below and "Save Target As..."
TLH #168 - The Royal Banners Forward GoThe embedded mp3 plays all seven stanzas of the hymn.