Jerusalem is one (4)

I believe the answer is:
hymn
(Other definitions for hymn that I've seen before include "Orison" , "sort of song" , "Religious song of praise" , "Sacred song of praise" , "Glorify" .)
I believe the answer is:
hymn
(Other definitions for hymn that I've seen before include "Orison" , "sort of song" , "Religious song of praise" , "Sacred song of praise" , "Glorify" .)