Following are a number of back-translations as well as a sample translation for translators of Jeremiah 17:1:

• Kupsabiny: “People of Judah,
  using a sharpened iron
  your sins are engraved in those hearts of yours
  that are dry/hard like a rock.
  They are also engraved with a sharp object
  in the horns of the altar.” (Source: Kupsabiny Back Translation)
• Hiligaynon: “The LORD said, ‘You (plur.) people of Juda, your (plur.) sins were-engraved in your (plur.) hard hearts, like words which were-engraved on the stone or on as-if-like-horn corners of the your (plur.) altars.” (Source: Hiligaynon Back Translation)