Wherefore... ? Who... ? Figure of speech Erotesis.
thy flowing valley. thy valley flowing [with blood].
trusted. confided. Hebrew. bat. h. App-69.
saying. Some codices, with three early printed editions, read "she who is saying in her heart".
Related Commentaries of Jeremiah 49:4
Jeremiah 49:4
4 Wherefore gloriest thou in the valleys, thy flowing valley, O backsliding daughter? that trusted in her treasures, saying, Who shall come unto me?