Following are a number of back-translations as well as a sample translation for translators of Jeremiah 18:15:

• Kupsabiny: “But my people have forgotten me,
  burning for idols things that smell sweet.
  That caused them to fall so
  they no longer follow the ways of old.
  But they are now passing along narrow roads
  instead of the wide ones.” (Source: Kupsabiny Back Translation)
• Hiligaynon: “But my people have- now -forgotten me. They burn incense to the worthless little-gods. They abandoned the right and old path and walked on the road which is not good where they stumbled.” (Source: Hiligaynon Back Translation)
• English: “But my people are not as reliable as those streams:
  They have abandoned me.
  They burn incense to honor/worship worthless idols.
  It is as though they have stumbled as they walked along very old roads that are good roads,
  and now, instead, they are walking on dirt paths.” (Source: Translation for Translators)