Psalm 137:8

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.

8 O daughter of Babylon, who art to be destroyed; happy shall he be, that rewardeth thee as thou hast served us.

9 Happy shall he be, that taketh and dasheth thy little ones against the stones.