What is river of babylon meaning?

The song "Rivers of Babylon" is based on Psalm 137, which tells the story of the Jewish people in exile in Babylon and their longing for their homeland. The rivers of Babylon refer to the Euphrates and Tigris rivers that ran through the city where the Jewish people were held captive. In the song, the rivers symbolize the obstacles the Jewish people faced in their quest for freedom and the hope that they would one day return to their homeland. The song was popularized by the reggae group Boney M. in the 1970s and has since been covered by numerous artists.