This is a carol I’ve never blogged that is next in the OCP Guitar Accompaniment Book.
It is by James Montgomery and the sheet music and the text for his three verses is at Hymnary. It is set to REGENT SQUARE by Henry Thomas Smart.
There are various additional verses all over the internet by later authors. The OCP has a fourth verse from the “Christmas Box” and a fifth from the “Salisbury Hymn Book.”
An unnecessary backing as you probably know this one: