Psalms 137:5
If I forget you, O Jerusalem,
What it says
If Jerusalem is forgotten, may the right hand lose its skill.
What it is doing
This verse begins the oath that memory of Jerusalem must not fail.
In context
1By the rivers of Babylon we sat and wept 2There on the willows 3for there our captors requested a song; 4How can we sing a song of the LORD 5If I forget you, O Jerusalem, 6May my tongue cling to the roof of my mouth 7Remember, O LORD, 8O Daughter of Babylon, 9Blessed is he who seizes your infants