Love the title, such a lot of spiritual meaning in a simple statement. Pretty piece too and a nice arrangement. When I heard it, I remembered the tune, so I must have heard it before somewhere.
I went looking for more about Bach day at the Proms on the BBC site. Didn't find that, but did discover that there are online streaming concerts from the Proms available for a very limited time. http://www.bbc.co.uk/proms/2010/
When Jesus went ashore, He saw a large crowd, and He felt compassion for them because they were like sheep without a shepherd; and He began to teach them many things. Mark 6:34 NASB