If I forget thee, O Jerusalem, let my right hand forget her cunning. If I do not remember thee, let my tongue cleave to the roof of my mouth; if I prefer not Jerusalem above my chief joy. (Psalms 137:5-6)
Reading this reminded me of the sermon Pastor Whitecar preached during our revival meetings. That was a wonderful sermon. I need to listen to it again. In the title is a link to the message.