The comma would seem to be important.
This Christmas song wasn’t in AOV and I haven’t caught up with it elsewhere so its presence OCP’s Guitar Accompaniment Book sees it included here.
OCP’s version gives four verses in their (somehow) copyrighted guitar arrangement. This site has the text of seven verses. Hymnary has the sheet music of this public domain traditional carol.
My backing has an extra bar at the end of the refrain to catch your breath.
All guns blazing choir:
Just for fun – Pentatonix: