By the rivers of Babylon, God’s people hung up their harps and stopped singing. This sermon outline, part of the Summer in the Psalms series, walks through Psalm 137 and the Babylonian exile, asking how to worship in a place you never wanted to end up, especially when the wreckage has your own fingerprints on it. It traces God’s glory leaving Jerusalem in Ezekiel and arriving in Babylon first, Jesus’ answer to the woman at the well, and Paul and Silas singing at midnight, showing that honest lament is itself a song God keeps.