Psalm 137:1-4

"By the rivers of Babylon,
There we sat down and wept,
When we remembered Zion.

Upon the willows in the middle of it
We hung our harps
For our captors demanded of us songs,
And our tormentors mirth, saying,
'Sing us one of the songs of Zion.'

How can we sing the Lord's song
In a foreign land?"