Following are a number of back-translations as well as a sample translation for translators of Jeremiah 8:5:

• Kupsabiny: “Why are these people so stubborn
  and why will Jerusalem always be stubborn?
  They cling to their idols/gods
  and refuse to return to me!” (Source: Kupsabiny Back Translation)
• Hiligaynon: “So, why you (plur.) who-come-from Jerusalem continue to turn-away from me? Why you (plur.) can- not -leave the little-gods/false-gods who cheat you (plur.) and return to me?” (Source: Hiligaynon Back Translation)
• English: “Yes, they do, so why do these people of Judah continue trusting in those idols that have deceived them?
  They continue turning away from me,
  even though I have warned them.” (Source: Translation for Translators)