We look at the very dramatic Psalm 137.  It tells of the fall of Babylon and the longing that the exiles have for their holy city and destroyed Temple.  We consider two people I met who reacted in very different ways to the feeling they had been harmed by others.  We look at why the Babylonian invasion is such a major cornerstone in the history of the Israelites.  We consider its use as a metaphor in both the Old and New Testaments.  We consider today - and how we should react to betrayal and loss.