From the pen of Brother Bill Paceley, Psalms 137:2 "We hanged our harps upon the willows in the midst there-of." They were captive in Babylon and decided to hang up their harps. Essentially they stopped singing, maybe even lost their song. As a christian today, do not allow your situation or surroundings to determine your song. Sing always of the goodness and grace of the Lord. It's not too late to pick up your harp and sing again.