Psalms 137:5

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?

⁵  If I forget thee, O Jerusalem, let my right hand forget her cunning.

⁶  If I do not remember thee, let my tongue cleave to the roof of my mouth; if I prefer not Jerusalem above my chief joy.

⁷  Remember, O LORD, the children of Edom in the day of Jerusalem; who said, Rase it, rase it, even to the foundation thereof.