Psalm 137:1-4 King James Version (KJV)
137 By the rivers of Babylon, there we sat down, yea, we wept, when we remembered Zion.
2 We hanged our harps upon the willows in the midst thereof.
3 For there they that carried us away captive required of us a song; and they that wasted us required of us mirth, saying, Sing us one of the songs of Zion.
4 How shall we sing the Lord's song in a strange land?