Psalms 137:2-5

²We hanged our harps upon the willows in the midst thereof.

³For there they that carried us away captive required of us a song; and they that made us wail required mirth, saying, Sing us one of the songs of Zion.

⁴How should we sing a song of Jehovah's upon a foreign soil?

⁵If I forget thee, Jerusalem, let my right hand forget its skill;