137 - Super flumina

1  By the waters of Babylon we sat down and wept, *
when we remembered you, O Zion.
2  As for our harps, we hung them up *
upon the trees that are therein.
3  For those who led us away captive required of us a song
  and melody in our heaviness: *
“Sing us one of the songs of Zion.”
4  How shall we sing the Lord’s song *
in the land of our captivity?
5  If I forget you, O Jerusalem, *
let my right hand forget its skill.
6  If I do not remember you, let my tongue cleave to the roof
  of my mouth, *
if I prefer not Jerusalem above my dearest joy.
7  Remember the children of Edom, O Lord,
  in the day of Jerusalem, *
how they said, “Down with it, down with it, 
even to the ground.”
8  O daughter of Babylon, wasted with misery, *
happy shall be the one who rewards you as you have  
done to us.
9  Blessed shall he be who takes your children *
and throws them against the stones.