***...I'm pretty sure that phrase originally had a more figurative and spiritual connotation. ;-)***
:-)..its a hymn book song we normally sing in the church, that for me refers to our spiritual battles as christian individuals...with a guaranteed victory..
but we cannot deny the fact that our men belongs to the authority or government/leadership annointed by God... and im sure many of them are christians who are there to imposed justice and righteousness as God has called them to... they deserve the words..
Onward Christian Soldiers...