Following are a number of back-translations as well as a sample translation for translators of Jeremiah 2:12:

• Kupsabiny: “But you up there in heaven/sky does it not scare you (plur.),
  and do these words cause you to lose speech?” (Source: Kupsabiny Back Translation)
• Hiligaynon: “The heavens were-astonished/stunned of what my people did; as-if it trembled because of so-much/extreme startlement. I, the LORD, (am) the-(one) saying this.” (Source: Hiligaynon Back Translation)